[GUIDE][BOOTLOADER,TWRP, ROOT]Lenovo TAB3 8/TB3-850F - Android General

This guide, for the Lenovo Tab 3 8" (TB3-850F), has 3 purposes:
1. Unlocking your bootloader;
2. Installing TWRP custom recovery;
3. Attaining superuser privileges (root) of the stock OS.
NOTE:
I can attest & confirm that this method has worked 100% on at least 7 devices of my own. Please read and re-read the instructions carefully before proceeding. If you follow this tutorial exactly as delineated, you should have no adverse issues in unlocking your bootloader, flashing custom recovery, or achieving systemless root of the stock Android OS.
MENTIONS & THANKS:
Based on XDA Senior Member @Hemphiz's groundbreaking root and custom recovery for this device, I am now revising this thread wth improved step-by-step instructions based on members' feedback and experiences. Thanks @Hemphiz for your research, assimilation of necessary files, and for breaking ground on this tablet. Thanks also for your granting me ownership of the thread. Your contributions are greatly appreciated by many. Thanks to the great @Chainfire for his flashable systemless rooting script. Thanks to @jemmini for compiling TWRP for this tablet. Finally, thanks to the many members who have tested this guide and provided much needed input & user experience.
DISCLAIMER: As always, please be reminded of the risk involved with flashing a custom recovery and/or attempting to attain superuser privileges of your Android OS. I will not be held responsible for devices bricked or otherwise rendered inoperable as a result of this thread. You assume full responsibility for any good or bad which may result from proceeding any further. However, with that having been said, I will provide any and all support possible. Read and follow the foregoing steps thoroughly and carefully prior to proceeding. NOTE: THIS GUIDE IS INTENDED ONLY FOR THE LENOVO TAB 3 8"/TB3-850F.
REQUIREMENTS:
1. Minimal ADB & Fastboot v1.4 (or newer) Windows Installer;
2. Windows PC or laptop (Mac may be used; however this guide is intended for Windows 7 and newer operating systems);
3. Official Lenovo USB Device Driver v1.1.21;
4. TWRP v3.0.1 for the TB3-850F;
5. ADB Driver Installer for Windows;
6. SuperSU v2.82-SR5 flashable zip.
(All files, drivers & utilities for this process are available in the below download link)
DOWNLOAD LINK: https://drive.google.com/folderview?id=1l-YN5aXmjDF3O1bHxFHVIxLKuvd847Q9
INSTRUCTIONS:
1. First and foremost, unlocking the bootloader is necessary. Also, this step is a good place to make some requisite preparations. Power on your Tab 3 and select SETTINGS once booted up. Go to ABOUT DEVICE, find BUILD NUMBER, and tap it 7 or 8 times until DEVELOPER OPTIONS is enabled. In DEVELOPER OPTIONS, tick OEM UNLOCKING and USB DEBUGGING. On your PC, install the Minimal ADB & Fastboot utilities, the ADB Driver Installer, and the Lenovo USB Driver Installer. Connect your Tab 3 to your PC with the supplied (or quality equivalent) OEM charging/syncing cable. Open a command window in your ADB/Fastboot directory, by holding SHIFT and right clicking in the desired path. In the command window, type: adb devices & press RETURN. If your device is connected properly, the command window will display a string of numbers/letters, which represent your device's serial number. If your serial number does not appear in the window, try changing USB ports, change syncing cables, or try reinstalling the ADB Drivers. Once properly connected, type adb reboot bootloader & press RETURN. Your tablet should boot into Fastboot Mode, which will be displayed in white bold letters on your device's display once complete. Once in Fastboot Mode, type fastboot oem unlock & press RETURN. Your device will prompt you to press Volume Up to proceed with unlocking the bootloader, or Volume Down to cancel the process. WARNING: UNLOCKING THE BOOTLOADER AUTOMATICALLY INITIATES A FACTORY DATA RESET. YOU WILL LOSE ANY UNSAVED VIDEOS, MUSIC, PERSONAL FILES, ETC.
2. Now that your bootloader is unlocked, you are ready to flash TWRP. Download the twrp.img file from my link and save it to your PC in the ADB/Fastboot path/directory. Also, save a copy of the file on your device's internal storage or external micro SD card. Since your device underwent a factory data reset, you will again need to enable DEVELOPER OPTIONS & tick OEM UNLOCKING & USB DEBUGGING as you did in Step 1. When you have done this, again open a command window, ensure a proper connecion, & type adb reboot bootloader & press RETURN. Once in Fastboot Mode, type fastboot boot twrp.img & RETURN. EXTREMELY IMPORTANT NOTE: this device's boot image is secured with dm-verity. Leave the /system partition as read-only when prompted by TWRP. Mounting /system as read/write at this point will result in a boot loop. Flashing SuperSU, as outlined in Step 3, will patch dm-verity and fix this.
From the TWRP main menu, select INSTALL, select the image file option in the bottom right of the screen, navigate to the location where you saved twrp.img in device storage or external storage, and commence the installation. Be certain and correctly choose "recovery" when prompted by TWRP. Now select REBOOT, then RECOVERY. Your TWRP custom recovery should now be successfully installed on your device's /recovery partition.
3. Now, it is time to root this tablet. Download & save a copy of the SuperSU v2.82-SR5 zip file to the tablet's internal or external storage. In TWRP main menu, select INSTALL & navigate to the saved SuperSU zip. Commence with installation. Systemless root mode will unpack, modify, repack and flash the patched boot image. Once done, reboot system. Your Android OS should now have full systemless root, and the /system partition may now safely mount as read/write.
TROUBLESHOOTING:
In the event your device becomes stuck in a bootloop, or is otherwise failing to boot into the OS, the following is a link to my stock firmware images thread for this device. NOTE: the following link will be beneficial only if your device successfully boots into Recovery/Fastboot mode. This link provides stock partition images of /boot, /recovery, /logo & /system. Typically, flashing the stock boot & system images will get you up & running again, and will restore the Android OS to stock condition.
https://forum.xda-developers.com/an...o-tab-3-8-tb3-850f-android-6-0-t3593043/page5
In the unfortunate event that you encounter a brick (your device fails to boot into the OS or Recovery Mode), please visit @r&xp's thread on unbricking your device & restoring it to factory stock condition. Members using his thread be sure to thank @r&xp. His collection of necessary files & comprehensive instructions has saved many, many bricked tablets. https://forum.xda-developers.com/android/help/lenovo-tab-3-8-tb3-850f-unbrick-root-t3598727

What is your software version?
Mine is TB3-850F_160412
i have a pending 51MB update ,do i complete all updates or ignore them and root?
Also whats the procedure to unroot if i want to get the updates later?

viv_jen said:
What is your software version?
Mine is TB3-850F_160412
i have a pending 51MB update ,do i complete all updates or ignore them and root?
Also whats the procedure to unroot if i want to get the updates later?
Click to expand...
Click to collapse
Look for build number. It's usally best to determine things. I'm on TB3-850F_S100030_161209_ROW
I took the latest OTA before flashing twrp else ota will fail due to the recovery being modified. For unroot there's an option in Superssu to unroot. I would personally create a full backup via twrp before rooting, so you can revert to it if you wish

this bricked my tablet

nox13666 said:
this bricked my tablet
Click to expand...
Click to collapse
Well you must've done something wrong. It's pretty much fool proof

Hemphiz said:
Well you must've done something wrong. It's pretty much fool proof
Click to expand...
Click to collapse
Great thread. OP's instructions & downloads work flawlessly. Thank you @Hemphiz

Thanks for the guide

Thanks for the guide!
Everything works but when I reboot into recovery I just get the dead android with no command under him..
I tried two times with same result Fastboot reports twrp flashes ok
Any ideas?
Thanks

Xecsc said:
Thanks for the guide!
Everything works but when I reboot into recovery I just get the dead android with no command under him..
I tried two times with same result Fastboot reports twrp flashes ok
Any ideas?
Thanks
Click to expand...
Click to collapse
Not to hijack the OP's thread but here are my thoughts. The dead Android indicates that TWRP did not successfully flash to your /recovery partition. Sounds like stock recovery is still installed. First, place a copy of twrp.img on your device's internal storage or on an external micro SD. Try this: instead of typing the command "fastboot flash recovery twrp.img", type " fastboot boot twrp.img" (assuming your twrp file is named twrp.img. If it isn't, rename it twrp.img for simplicity purposes). This command will temporarily boot your device into TWRP recovery. From the main menu on TWRP, select INSTALL. In the bottom right of the screen, select the option for "img" files. Navigate to where you stored "twrp.img" and select it. Install it to "RECOVERY" when prompted. Once it flashes, select REBOOT then select RECOVERY. Your device should now successfully boot into TWRP recovery.

MotoJunkie01 said:
Not to hijack the OP's thread but here are my thoughts. The dead Android indicates that TWRP did not successfully flash to your /recovery partition. Sounds like stock recovery is still installed. First, place a copy of twrp.img on your device's internal storage or on an external micro SD. Try this: instead of typing the command "fastboot flash recovery twrp.img", type " fastboot boot twrp.img" (assuming your twrp file is named twrp.img. If it isn't, rename it twrp.img for simplicity purposes). This command will temporarily boot your device into TWRP recovery. From the main menu on TWRP, select INSTALL. In the bottom right of the screen, select the option for "img" files. Navigate to where you stored "twrp.img" and select it. Install it to "RECOVERY" when prompted. Once it flashes, select REBOOT then select RECOVERY. Your device should now successfully boot into TWRP recovery.
Click to expand...
Click to collapse
I was running into the same issue after flashing twrp.img via fastboot, it kept coming up with no command when booting into recovery. Followed MotoJunkies advice and booted into twrp.img instead of flashing and installed it that way, now my device is rooted. Thank you Hemphiz and MotoJunkie.

MotoJunkie01 said:
Not to hijack the OP's thread but here are my thoughts. The dead Android indicates that TWRP did not successfully flash to your /recovery partition. Sounds like stock recovery is still installed. First, place a copy of twrp.img on your device's internal storage or on an external micro SD. Try this: instead of typing the command "fastboot flash recovery twrp.img", type " fastboot boot twrp.img" (assuming your twrp file is named twrp.img. If it isn't, rename it twrp.img for simplicity purposes). This command will temporarily boot your device into TWRP recovery. From the main menu on TWRP, select INSTALL. In the bottom right of the screen, select the option for "img" files. Navigate to where you stored "twrp.img" and select it. Install it to "RECOVERY" when prompted. Once it flashes, select REBOOT then select RECOVERY. Your device should now successfully boot into TWRP recovery.
Click to expand...
Click to collapse
Thanks worked perfect!

this did not work for me. now my tablet is in boot loop. keeps going to team win. trying to trying to mount storage and then back to the regular boot. over and over.

figgenhoffer said:
this did not work for me. now my tablet is in boot loop. keeps going to team win. trying to trying to mount storage and then back to the regular boot. over and over.
Click to expand...
Click to collapse
Hmmm. Did you execute "fastboot oem unlock" first to unlock your bootloader? It sounds as though you are saying TWRP installed correct? When you try to boot into the OS, you are getting reverted back to TWRP?

i did that. i had teamwin recovery. then installed the superuser.zip and it keeps looping

figgenhoffer said:
i did that. i had teamwin recovery. then installed the superuser.zip and it keeps looping
Click to expand...
Click to collapse
I see. The superuser zip is likely the culprit. Which one did you use? Did you use the one in the link? Here is a link for the stock boot.img for this device. Install it in fastboot mode by typing "fastboot flash boot boot.img". Try booting after flashing the stock boot image and also try reinstalling the boot script.https://drive.google.com/file/d/0B7-zQU1VihD3ZGZBRzU1Nm1PYjA/view?usp=drivesdk
Note: you will need to rename the downloaded file to " boot.img"

Thanks for the guide. Tried to do this on the Lenovo TAB3 10 Business, but no success
I can connect using the tools and enter into fast boot
When I flash, it seems successful, but after shutdown, start with power, volume buttons, I don't see the TWRP, but instead a kind of test app
When i use the other method to boot into the twrp, the Lenovo, boots normal, not into TWRP
Any ideas?

smouge said:
Thanks for the guide. Tried to do this on the Lenovo TAB3 10 Business, but no success
I can connect using the tools and enter into fast boot
When I flash, it seems successful, but after shutdown, start with power, volume buttons, I don't see the TWRP, but instead a kind of test app
When i use the other method to boot into the twrp, the Lenovo, boots normal, not into TWRP
Any ideas?
Click to expand...
Click to collapse
When you initially connect your Tab3 to PC and open a command window, did you execute both recognition tests? "adb devices" and "fastboot devices"? I am just curious as to whether your device is being recognized by both the fastboot and the adb platforms. Please try this and let me know.

This i what I with Lenovo Tab3 10 business
>adb devices
List of devices attached
8HSKCMT4PJIZ9HDZ device
>adb reboot bootloader
>fastboot devices
8HSKCMT4PJIZ9HDZ fastboot
At this moment, on the Lenovo Android you only see a smaal line at the bottom: =>FASTBOOT mode...
The fastboot does nt deisplay errors, but after the following command, the tablet just boots in the normal Android. On the Android device I also saw quickly the message "USB transferring OK" before booting
>fastboot boot twrp.img
downloading 'boot.img'...
OKAY [ 1.192s]
booting...
OKAY [ 0.073s]
finished. total time: 1.269s
---------- Post added at 09:20 AM ---------- Previous post was at 09:03 AM ----------
On the Lenovo TAB3 10 Business I can also do the following:
Holding Vol up + Power when off and then releasing power when you see the Lenovo logo will bring up the following menu:
Select Boot Mode:
[VOLUME_UP to select. VOLUME_DOWN is OK.]
[Recovery Mode]
[Fastboot Mode]
[Normal Boot] <<==
With the recovery mode I see the following:
Android Recovery
Lenovo/LenovoTB3-X70L/TB3-X70L
6.0/MRA58K/TB3-X70L_S000020_170209_ROW
user/release-keys
Use volume up/down and power.
Reboot system now
Reboot to bootloader
Apply update from ADB
Apply update from SD card
Wipe data/factory reset
Wipe cache partition
Backup user data
Restore user data
Root integrity check
Mount /system
View recovery logs
Power off

smouge said:
This i what I with Lenovo Tab3 10 business
>adb devices
List of devices attached
8HSKCMT4PJIZ9HDZ device
>adb reboot bootloader
>fastboot devices
8HSKCMT4PJIZ9HDZ fastboot
At this moment, on the Lenovo Android you only see a smaal line at the bottom: =>FASTBOOT mode...
The fastboot does nt deisplay errors, but after the following command, the tablet just boots in the normal Android. On the Android device I also saw quickly the message "USB transferring OK" before booting
>fastboot boot twrp.img
downloading 'boot.img'...
OKAY [ 1.192s]
booting...
OKAY [ 0.073s]
finished. total time: 1.269s
---------- Post added at 09:20 AM ---------- Previous post was at 09:03 AM ----------
On the Lenovo TAB3 10 Business I can also do the following:
Holding Vol up + Power when off and then releasing power when you see the Lenovo logo will bring up the following menu:
Select Boot Mode:
[VOLUME_UP to select. VOLUME_DOWN is OK.]
[Recovery Mode]
[Fastboot Mode]
[Normal Boot] <<==
With the recovery mode I see the following:
Android Recovery
Lenovo/LenovoTB3-X70L/TB3-X70L
6.0/MRA58K/TB3-X70L_S000020_170209_ROW
user/release-keys
Use volume up/down and power.
Reboot system now
Reboot to bootloader
Apply update from ADB
Apply update from SD card
Wipe data/factory reset
Wipe cache partition
Backup user data
Restore user data
Root integrity check
Mount /system
View recovery logs
Power off
Click to expand...
Click to collapse
Chances are the twrp isn't compatible with your device. Although the hardware all looks the same. Problem is my knowledge with Android development isn't that great. I simply read in my spare time. The twrp I found for this device on a previous xda thread, but it was more of a Q&A so I made this guide to simplify things for people. I do know that the original twrp was made here http://4pda.ru/forum/index.php?showforum=583

Worked great for me thanks. Had a few problems off at first but managed to get it done. First boot did take a little while but after that all is great

Related

3 doubts about flashing CWM and EOS ROM

Hi all.
I have an Spanish wifi-only Xoom (MZ604) and I'm tired of waiting for motorola's updates (still in Honeycomb 3.2!!!).
I want to test either EOS3 (Android 4.1.1) or EOS2 (Android 4.0.4) custom roms. I've read almost all tutoriales but I still have some doubts about the procedures... could anybody check this message and warn me if I'm going to do something wrong?
DOUBT 1.- Key shortcuts in Xoom
Can anybody tell me the existing key combinations in Xoom? I only know about POWER+VOL_UP key to enter bootloader mode.
DOUBT 2.- How to install CWM.
If I understand it correctly, both EOS2 and EOS3 should be installed from CWM recovery...
Is the following procedure OK?
- Some tutorials say that you have to be root first to install CWM ... is it really needed? Can't be done directly with ADB?
- Install Android SDK in the PC.
- Download eos-recovery-r6.img or eos-recovery-r6-softkeys.img
- Connect XOOM to PC with the original USB cable.
- Reboot XOOM in bootloader mode (Power + VolUp)
- Exec adb and then:
fastboot oem unlock <---- is this a requirement?
fastboot flash recovery eos-recovery-r6.img
fastboot reboot
DOUBT 3.- How to install or upgrade EOS 2 or 3 ROM?
Is the following procedure OK?
- Download ROM and gapps zip files.
- Start XOOM in recovery mode (CWM) -> How to do this?
- Do a nandroid backup.
- Wipe everything (data, cache, dalvik, etc)
- Install ROM zip.
- Install gapps zip.
- No need to do anything to root it, the rom is already rooted <-- is that right?
- Reboot
Is everything OK? Did I miss anything? Do I need to root my 3.2 install before any other step? Do I have to do the "oen unlock"?
Thanks.
All you need to do is unlock your boot loader and get into flashing eos3. Will give you details how to soon
Sent from my MZ601 using Tapatalk 2
wesamothman said:
All you need to do is unlock your boot loader and get into flashing eos3. Will give you details how to soon
Click to expand...
Click to collapse
Thanks for answering. If I'm understanding you correctly, you say that I don't need CWM and I can just flash the EOS ROM directly to my xoom without "applying" it as a zip in CWM...
I would really like to install CWM, I appreciate a lot the possibility to do "nandroid" backups to be able to go back before installing kernels, updates or so ...
NoP_Compiler said:
Thanks for answering. If I'm understanding you correctly, you say that I don't need CWM and I can just flash the EOS ROM directly to my xoom without "applying" it as a zip in CWM...
I would really like to install CWM, I appreciate a lot the possibility to do "nandroid" backups to be able to go back before installing kernels, updates or so ...
Click to expand...
Click to collapse
Since you are going to install EOS Jellybean, I don't advise you with CWM. A different recovery made by EOS team is better through which you can do nandroid backup and other stuff...
Here is what you need to do step by step...
Note: please read this procedure carefully more than once until you are fully aware of it. If you have any doubts or concerns, just ask to avoid confusion before you apply. This should be followed step by step.
To summarize:
First, download the above ROM and GAPPs and put them onto your xoom internal and external SD card. Put them under /mnt/sdcard for internal sd or somewhere accessible, and under the root of your external sd card.
To download:
• Get the Motorola USB drivers to your laptop: http://developer.motorola.com/docstools/USB_Drivers/
• Get the Android SDK to your laptop: http://developer.android.com/sdk/index.html
• Recovery Image: http://goo.im/devs/teameos/recoveries/wingray/eos-recovery-r6.img
• GAPPS: http://goo.im/devs/teameos/roms/eos3/gapps/gapps-jb-20120726-eos-signed.zip
• ROM: http://goo.im/devs/teameos/roms/eos3/nightlies/wingray/ ; get the latest one...
Steps:
1. Power off your XOOM device.
2. Press and hold the volume down button while pressing the power button at the same time. Note: Even if your xoom starts again, just keep the button pressed until you see "Starting fastboot protocol" on the screen.
3. Connect Xoom to your computer via USB.
4. Open a ‘Command Prompt’ or ‘Terminal’ window on your computer in your sdk/tools folder. This is the sdk you downloaded above.
5. unlock your xoom and flash the recovery image. The recovery image should be in your current working directory where you have command line navigated to: Type:
adb reboot bootloader
fastboot oem unlock
fastboot flash recovery eos-recovery-r6.img
fastboot reboot
adb reboot recovery
Now, you have your device unlocked and recovery installed.
Reboot your xoom by selecting the option "reboot system now" from recovery. you can navigate up and down using the volume buttons. Once an option is highlighted, press the power button to select, you will still have your old ROM.
To flash the other ROM downloaded above,
1. Boot into recovery by:
i. As soon as you hit the reboot command above, you should see a Motorola logo appear. Wait 3 seconds and tap the Volume down button and the words Android Recovery should appear on the screen. When you see that, tap the Volume up button and you’ll boot into recovery.
2. From within Recovery, perform wipe data, wipe cache, and go to advanced, wipe dalvik cache and battery stats. Don't worry, if the ROM and GAPPs are deleted, which should not be the case, you will have them on your external sd card
Note: wipe data will delete your stuff on the xoom. It would be great if you backup your files that you need to your external sd card before you start any of this procedure.
3. In recovery, navigate to install zip from sdcard > choose zip from sd card and select the EOS ROM you copied to the root of the SD card. Once the files are flashed, DO NOT reboot afterwards. Hold on.
4. Again, from Recovery, choose install zip from sdcard > choose zip from sd card and select the GAPPs you copied to the root of the SD card.
Then hit reboot system now. It will take 2 - 3 minutes for the first reboot. Setup your google account. and you are good to go.
Later reboots will be much faster (around 30 - 45 seconds). The more apps you install, the slower it boots...
That is pretty much it. Enjoy, I hope this helps you
Of course it helps! In fact, a lot.
When I was talking about CRW I really meant EOS recovery (which is based in CRW itself IIRC).
The only that I can't understand is why some tutorials ask me to root the tablet before doing all this process...
Anyway, I think I'm finally going with EOS3 + EOS recovery if nobody here advices me to flash EOS 2 instead...
Sent from my Samsung Galaxy S2 using Tapatalk Pro.
So, before flashing:
- Do you think EOS3 (JB in Xoom) is mature enough to use it, or I should go with EOS2 final (ICS)?
- Do you know of anything not working in a wifi xoom with EOS3 rel.127?
- I've downloaded eos6-recovery.img ... do you think I should flash the "soft-keys" or the rogue-recovery instead?
- I don't have Microsoft Windows in my laptop: I work under Linux, so I haven't downloaded Motorola's USB drivers... I imagine that they are not needed under Linux, and It will work just with SDK's "adb" and "fastboot", right?
- Can the device be bricked with this procedure, or there is always a "Power+VolKey" way to flash a stock image? (like galaxys2 that its almost unbrickable).
PS: Thanks for informing me in the other thread that the EOS rom comes already rooted
I will be away for couple of hours, will answer your questions all as soon as I get back...
Sent from my MZ601 using Tapatalk 2
NoP_Compiler said:
So, before flashing:
- Do you think EOS3 (JB in Xoom) is mature enough to use it, or I should go with EOS2 final (ICS)?
- Do you know of anything not working in a wifi xoom with EOS3 rel.127?
- I've downloaded eos6-recovery.img ... do you think I should flash the "soft-keys" or the rogue-recovery instead?
- I don't have Microsoft Windows in my laptop: I work under Linux, so I haven't downloaded Motorola's USB drivers... I imagine that they are not needed under Linux, and It will work just with SDK's "adb" and "fastboot", right?
- Can the device be bricked with this procedure, or there is always a "Power+VolKey" way to flash a stock image? (like galaxys2 that its almost unbrickable).
PS: Thanks for informing me in the other thread that the EOS rom comes already rooted
Click to expand...
Click to collapse
Alright, eos jelly bean is fully stable, ,such faster and smoother than ICS. You want feel the difference until you try it... however, eos ICS is stable too and has more features and addons by eos because it has been there under dev for longer time, jellybean is new, one month old only... I recommend you to go for jellybean, and try and see for yourself. At anytime you can flash ICS since your Xoom booloader is already unlooked and recovery installed, you can do that by just wiping data and flash ICS zip. That is as simple as that...
For Motorola drivers on Linux, I think it is not needed, adb is built in with Linux, but I am not sure as I haven't tried that yet.
For eos recovery, don't use the soft key version, use the normal one...
with this recovery, you will be safe, because at all times, your external SD is accessible in emergencies...
Hope that helps...
Sent from my MZ601 using Tapatalk 2
You have it down perfectly. Just to recap.
1. Set up android sdk. Download recovery image and store in sdk folder. Download rom/gapps and store on tablet.
2. Boot into fastboot (power + volume up).
3. fastboot oem unlock (required). This will wipe all data.
4. fastboot flash recovery recovery.img (whatever recovery you decide to go with, I recommend eos soft key).
5. boot into recovery, make nandroid backup, flash rom of your choice + gapps if necessary.
People tie rooting to flashing custom roms because many people have become so reliant on apps like rom manager that flash the recovery for you, an app that requires root access. I never rooted my galaxy nexus or xoom. I simply flashed recoveries in fastboot and proceeded to flash roms in recovery.
It actually bothers me how some have become so reliant on root access to flash roms. It has gotten to a point where many people genuinely don't know the difference and that, to me, says they don't really understand what it is they're doing, which will lead to issues should they ever need to troubleshoot.
You seem to have it down well though. Good luck.
Thanks a lot to both.
I'm still waiting for JDK to download for Android SDK to work (I'm on hollydays in a small house in the middle of the forest and Im connecting with GPRS via tethering...).
I'll inform about the results...
Sent from my Samsung Galaxy S2 using Tapatalk Pro.
Good luck...
Sent from my MZ601 using Tapatalk 2
Ok. EOS6-RECOVERY installed correctly. There are a couple of mistakes and some missing info in the "tutorial", so I'm going to change it to help future users:
I finally did it under Windows because almost all tutorials in Internet explain all the possible problems that you can find in Windows, and it's a "too risky" task for me to "experiment" by myself.
PART 1 .- HOW TO INSTALL EOS6 RECOVERY:
Originally quoted from wesamothman:
First, download the above ROM and GAPPs and put them onto your xoom external SD card. Put them in a folder called /sources/ of your external sd card.
- Get the Motorola USB drivers to your laptop: http://developer.motorola.com/docstools/USB_Drivers/
- Get the Android SDK to your laptop: http://developer.android.com/sdk/index.html
- GAPPS: http://goo.im/devs/teameos/roms/eos3/gapps/gapps-jb-20120726-eos-signed.zip
- ROM: http://goo.im/devs/teameos/roms/eos3/nightlies/wingray/ ; get the latest one...
And the most important:
- Recovery Image: http://goo.im/devs/teameos/recoveries/wingray/eos-recovery-r6.img
Check that the md5sum of this file is correct and matches with the one provided in the download page. This is the most important file because it will allow to install the CWM recovery system and it's CRITICAL that the file is not corrupted.
Steps:
a.- Install in your PC the lastest JavaSE JDK from Oracle's website.
b.- Install in yout PC Android SDK, open Windows' cmd, enter the android-sdk folder and run:
Code:
tools\android.bat update sdk
Now select "Android SDK Tools", "Android SDK platform-tools", and Extras/"Google USB Driver". Click on "Install packages".
c.- Enable USB debugging in the XOOM (in settings, development).
d.- Install the Motorola USB drivers for your laptop (32 or 64 bits, check it in the Windows system properties).
e.- Plug the Xoom to your laptop.
f.- Execute cmd and enter the android-sdk/platform-tools folder.
Run "adb devices", if you get an empty "List of devices attached", then you must enter the control-panel -> devices and "Fix problem with device" over the MZ60x device. After a While, Windows will fix it and "adb devices" will show a message like:
Code:
List of devices attached
037887sda897xz device
(the digits string will vary according to your device)
NO NEED TO DO THIS:
NO -> 1. Power off your XOOM device.
NO -> 2. Press and hold the volume down button while pressing the power button at the same time. Note: Even if your xoom starts again, just keep the button pressed until you see "Starting fastboot protocol" on the screen.
Because the first command show after this lines: (adb reboot bootloader) won't work while in fastboot. Only "fastboot" commands work in fastboot mode. If you try that command in fastboot mode, it will say "Error: device not found".
So just, with your xoom working under the Android OS, do:
Code:
adb reboot bootloader
With the above, you'll enter fastboot mode without needing to press any key in the startup.
Now your Xoom will show the Motorola logo and the words "Fastboot protocol...". If you need to stop now for any reason, you can abandon this mode safely and reboot the tablet with "Power+VolUP+VolDown" for a few seconds.
But let's continue.... If you now do:
Code:
fastboot devices
You should get a string like
Code:
List of devices attached
037887sda897xz fastboot
If you don't see that string (and you see and error about device not found), you have to "fix/repair" the usb drivers again in the Windows ControlPanel / Devices. Now you'll see a "FASTBOOT" device instead of the MZ60x you repaired before (that's why we have to repair/fix again the device, because WIndows see it as a different device while in fastboot mode).
After repairing it, unplug and plug the USB cable (still in fastboot mode) and repeat the command:
Code:
fastboot devices
Now it will work and you'll see the device recognized by "fastboot"
Issue the following command to unlock the Xoom (you'll void the warranty):
Code:
fastboot oem unlock
Follow the Xoom's onscreen instructions to unlock the bootloader. You have to use VolDown to move through options and VolUP to accept an option.
The xoom will reboot and your old android OS will show, but now with a factory reset. Select language, time, etc and enable again USB debugging and execute in the PC:
Code:
adb reboot bootloader
(to start again the tablet in fastboot mode)
Now copy the file eos-recovery-r6.img to the android-sdk/platform-tools/ folder and execute:
Code:
fastboot flash recovery eos-recovery-r6.img
You will see something like:
Code:
C:\Users\sromero\Desktop\android-sdk-windows\platform-tools>
fastboot flash recovery eos-recovery-r6.img
sending 'recovery' (4114 KB)...
OKAY [ 0.499s]
writing 'recovery'...
OKAY [ 1.014s]
finished. total time: 1.529s
Check in the xoom's screen that the file was correctly written and execute:
Code:
fastboot reboot
You xoom will start again in Android OS mode. Execute:
Code:
adb reboot recovery
And you'll start the nice EOS Recovery (based on Clockworld Mod) recovery system.
You can also do it manually by powering on the Xoom and when the motorola logo appears, wait 3 seconds and press VolUp.
Now, you have your device unlocked and recovery installed. Now, you are SAFE because you can do nandroid backups and restores and can put any ROM in your system and go back with a backup or flash another different rom.
PART 2 .- HOW TO USE CWM / EOS RECOVERY
Code:
Up -> VolumeUp button
Down -> VolumeDown button
Select -> POWER button
PART 3 .- HOW TO INSTALL EOS3 ROM:
Under recovery mode (abd reboot recovery), do:
- Backup/restore -> backup to external SD.
- Wipe data/factory reset
- Wipe cache
- Advanced -> Wipe Dalvik Cache
- Advanced -> Wipe Battery Stats
- Install ZIP from SDCARD -> /sources/ -> the eos3 rom .zip file.
- Install ZIP from SDCARD -> /sources/ -> the gapps .zip file.
- Reboot
- Enjoy your new rom!
Very well detailed... great...thx.
Sent from my MZ601 using Tapatalk 2
wesamothman said:
Very well detailed... great...thx.
Click to expand...
Click to collapse
No... thank you for the initial info
After restarting, I have a notification about a ROM update (128). The ROM-management app allows me to download it or apply a incremental update...
Do you know if that second option (incremental update) is safe?
Anyway, I can just always do a Nandroid and test it ... having CWM I can't loose never anything, right?
Of course it is safe, I use it a lot. Just boot into recovery now by long press on power menu, select reboot, recovery,
First download build128. It will be under /storage/sdcard0/goo manager.
From recovery, wipe cache, dalvik, flash build 128, and reboot,
FYI, this latest build has theme engine now
Sent from my MZ601 using Tapatalk 2
wesamothman said:
First download build128. It will be under /storage/sdcard0/goo manager.
From recovery, wipe cache, dalvik, flash build 128, and reboot,
FYI, this latest build has theme engine now
Click to expand...
Click to collapse
So, the incremental update has to be flashed from recovery too?
I'll try it after a few days, when people confirms that it has not any major bug...
Thanks.
NoP_Compiler said:
Thanks a lot to both.
I'm still waiting for JDK to download for Android SDK to work (I'm on hollydays in a small house in the middle of the forest and Im connecting with GPRS via tethering...).
I'll inform about the results...
Sent from my Samsung Galaxy S2 using Tapatalk Pro.
Click to expand...
Click to collapse
Worth noting that to use fastboot and stuff, you only really need to install the Android SDK Platform-tools, maybe the regular SDK tools as well, I can't remember.
You don't need to install all the other stuff.
---------- Post added at 08:02 AM ---------- Previous post was at 08:01 AM ----------
NoP_Compiler said:
So, the incremental update has to be flashed from recovery too?
I'll try it after a few days, when people confirms that it has not any major bug...
Thanks.
Click to expand...
Click to collapse
Yes, any updates/mods/gapps updates need to be flashed in recovery.
Unless specified that its necessary by devs though, you don't need to wipe anything. I've been on JB nightlies from day 1 and I haven't wiped cache or anything since the initial wipe.
Is it possible to...
a.- change the system font (too 'light' in my xoom).
b.- disable jellybean UI animations...
?
I don't know about question a, though I'm sure its possible.
As for question b, try a different launcher. Apex launcher and nova launcher are both popular Android 4.0+ launchers (check play store for them).
Eos ROM,m settings, developer options, disable animations and transitions
Sent from my MZ601 using Tapatalk 2

N00b tutorial: Flashing EOS3 to MZ604 Xoom (Wifi)

Hi all.
A few days ago I entered the Xoom forum asking about how to modify an "unaltered" Spanish/European Xoom (Wifi Only, MZ604) running stock Android Honeycomb (3.2) and flash a custom ROM with Android 4.1.1 (JellyBean), so that I don't have to wait Motorola to release the updates (still in Honeycomb in Europe, while in US they're enjoying JB), and to enjoy the extras that custom ROMs offer (root, overclocking, etc).
Xda users "wesamothman" and "Cubanluke88" answered quickly to my question and this allowed me to unlock my Xoom bootloader, install TWRP Recovery and flash EOS3 ROM (JellyBean for Xoom from TEAM EOS). The results are awesome; the change from Honeycomb to Jellybean, plus the totally stable overclocking at 1.2 and even 1.4 Ghz is worth the fact that you void the Xoom warranty by doing this procedure. It's like having a brand new tablet.
As I found some problems/mistakes in the procedure I was given, I've created a new "Guide for Noobs" (based on wesamothman's) so that anybody can reproduce the same steps and convert an European Xoom (Wifi Model, MZ604) into a modern EOS3-powered Xoom.
NOTE: I initially wrote this tutorial using the EOS-RECOVERY-6.IMG as the CWM Recovery software to install in the Recovery Partition. The recommended recovery software now is TWRP so I've updated the tutorial replacing the download links and filename.img to flash. The procedure remains the same, although I really tested and executed it with eos-recovery-6, not with TWRP. Anyway, it is supposed to be flashed and work the same way than I initially described it.
NOTE THAT THIS PROCEDURE IS FOR EOS3 - (EOS NIGHTLY <= v155).
EOS4 (nightly >= v156) requires a slightly different procedure!!!
Please, remember that by unlocking the bootloader (and flashing non official software) you're voiding the device warranty and that I'm not responsible of any damage that your device can suffer. I'm just explaining how I did the unlocking+flashing to convert my SLOW XOOM in a fully working JellyBean system. Remember also that this procedure is for WIFI ONLY Xooms. 3g xooms need a different rom/procedure.
So, sumarizing, that's what we are going to do:
a.- Unlock the "bootloader" of the Motorola Xoom so that we can "install" custom software in both the "recovery" and the "data" partitions. Please notice that by unlocking the bootloader you void the device warranty.
b.- Flash TWRP software into the recovery partition, (I was flashing EOS-Recovery-v6 software initially but now is deprecated and TWRP must be used) so that we can launch this software pressing a combination of keys during power-on. This software will allow us to make full backup/restore of the device memory, and to install any ROM (EOS2, EOS3, cyanogenmod, EDGE, etc) in the system. Thanks to this recovery we are safe against problems in the O.S. (even if we break it), because we can always recover from backup or flash a new ROM (including the "stock" ROM, I mean, the ROM shipped oficially with the device) and solve the situation.
c.- Once recovery is installed, do a NANDROID backup of the NAND of our device, to have a copy of the "stock" system.
d.- From Recovery, flash the desired ROM (EOS3 in my case) and the Google Apps applications (they can't be included inside the ROM for legal reasons, so they are flashed separately) to the "data" particion.
e.- Restart and enjoy our new system (you can also made another NANDROID backup to save this "working point" for the future).
Steps a). and b). need a working computer with Linux, Windows or Mac. After doing b).- you can do everything from the Xoom itself and you don't need the computer anymore. After doing b)., you'll be able to download ROM images directly under your Xoom in the uSD card and reflash any new ROM directly rebooting the tablet into recovery-mode.
Steps a) and b) can be done from Linux, Windows and Mac. Although I have Linux in my laptop, I found that almost all the tutorials in Internet explain the procedure under Windows so I installed temporary a Windows system to do the "PC dependant" steps, because I didn't want to experiment with the "risky" actions in both steps.
So, let's start with the "PC dependant" actions, which includes steps a). and b).
I'll try to update the thread with screenshots in the future, as I didn't take photos/screenshots of the procedure, I'll check images.google.com to find something that fits the text, and add the later to the tutorial if they are really needed.
PART 1 .- HOW TO INSTALL TWRP RECOVERY:
Here we are going to unlock our Xoom and install a custom recovery software into the recovery partition. The recovery software is launched when you start your Xoom in recovery mode, and this is achieved by pushing Power, VolUP and VolDown key combinations when you power-on the tablet (we'll see how later).
So we'll replace the original "recovery" software by a custom one that allows us to flash NON OFFICIAL software to the data partition.
To do that, first we have to download all the required software in the Xoom enternal uSD card and prepare our PC system to recognize and work with the Xoom. We have to download:
Get the Motorola USB drivers for your system: http://developer.motorola.com/docstools/USB_Drivers/ . This step is only needed under Windows, so that the Windows System recognizes the Xoom and the Android SDK binaries (adb and fastboot) can send data to the tablet. Check that you're downloading the right drivers (32 or 64 bits) for your 32 or 64 bits System, and install them. If the Android SDK in your Linux system can recognize the Xoom, you're ready to use Linux also to do the following steps.
Download and Install in your PC the lastest JavaSE JDK from Oracle's website: http://www.oracle.com/technetwork/java/javase/downloads/index.html.
Download and install the Android SDK for your system: http://developer.android.com/sdk/index.html .
Download the EOS v155 ROM and GoogleAPPS for that version. My final choose was EOS3 ROM Wingray (Jellybean for Xoom), and installed v155 from the nightly compilations (which is the latest nightly in Android 4.1, being v156+ Android 4.2). "Nightly" means that as the software is still not "final version" (it's still in development) a new version is released almost everyday, correcting bugs or adding new features. I personally didn't found any bug in v155 but you can check the EOS3 thread in XDA to check that the latest version has no bugs reported by people in that thread.
ROM: http://goo.im/devs/teameos/roms/eos3/nightlies/wingray/ (as of date September-2012 - I recommend v141 )
GAPPS: Latest: http://teameos.org/gapps/wingray (I used http://goo.im/devs/teameos/roms/eos3/gapps/gapps-jb-20120802-eos-signed.zip for v155).
EOS3 THREAD: http://forum.xda-developers.com/showthread.php?t=1764751
And the most important, download TWRP the "recovery software" that will allow you to work without the need of the PC (I was using Team Eos Recovery 6 initially, but now is deprecated and TWRP must be used):
Team Win Recovery Project 2.x, (TWRP): http://forum.xda-developers.com/showthread.php?t=1782235
You should download the IMG file (example: R.A.H.v3_TWRPv2.5.0.img). Check that the size of the downloaded file matches the size that is shown in the above link. This is the most important file because it will allow to install the recovery system and it's CRITICAL that the file is not corrupted..
Steps:
a.- Install in your PC the Android SDK, open Windows' cmd, enter the android-sdk folder and run:
Code:
tools\android.bat update sdk
Now select "Android SDK Tools", "Android SDK platform-tools", and Extras/"Google USB Driver". Click on "Install packages".
This will download and install the packages needed so that we can access the Xoom from the PC for "flashing" data purposes; mainly "adb" and "fastboot". Adb allows us to work with the xoom started in the Android System, and fastboot allows us to work with the xoom started in fastboot mode, which is the mode we'll use to "flash" the recovery software.
b.- Enable USB debugging in the XOOM (in settings, development), so that we can use adb with the tablet.
c.- Install the Motorola USB drivers for your laptop (32 or 64 bits, check it in the Windows system properties).
d.- Plug the Xoom to your PC.
e.- Execute cmd and enter the android-sdk/platform-tools folder.
Run "adb devices". You should see that the system identifies your Xoom with a long numbers+letters string. If you get an empty "List of devices attached", then you must enter the control-panel -> devices and "Fix problem with device" over the MZ60x device, so that the system can bind the right USB drivers we installed to that concrete device.
After a While, Windows will fix it and re-executing "adb devices" will show a message like:
Code:
List of devices attached
037887sda897xz device
(the digits string will vary according to your device)
Now, with your xoom working under the Android OS, do:
Code:
adb reboot bootloader
With the above, you'll enter fastboot mode without needing to press any key in the startup. Fastboot mode is a special bootmode in the xoom that allows the PC to send data to the Xoom and "write" to Recovery and Data partitions. You can also enter that mode starting the Xoom with "Power+Volume Up" pressed simultaneously.
Now your Xoom will show the Motorola logo and the words "Fastboot protocol...". If you need to stop now for any reason, you can abandon this mode safely and reboot the tablet with "Power+VolUP+VolDown" for a few seconds.
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"lightbox_next": "Next",
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"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
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"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
(Photo: fastboot mode, taken from google images)
But let's continue.... If you now do:
Code:
fastboot devices
You should get a string like
Code:
List of devices attached
037887sda897xz fastboot
If you don't see that string (and you see and error about device not found), you have to "fix/repair" the usb drivers again in the Windows ControlPanel / Devices. Now you'll see a "FASTBOOT" device instead of the MZ60x you repaired before (that's why we have to repair/fix again the device, because Windows see it as a different device while in fastboot mode).
After repairing it, unplug and plug the USB cable (still in fastboot mode) and repeat the command:
Code:
fastboot devices
Now it will work and you'll see the device recognized by "fastboot".
Issue the following command to unlock the Xoom (you'll void the warranty). If you don't unlock the xoom, data and recovery partitions will be "read only" and you can't send the "new software" to them.
Code:
fastboot oem unlock
Follow the Xoom's onscreen instructions to unlock the bootloader. You have to use VolDown to move through options and VolUP to accept an option. The device will ask you twice if you are sure that you want to unlock the device and void the warranty, and then it will make a "factory reset" of the O.S. .
The xoom will reboot and your old android OS will show, but now with a factory reset. Select language, time, etc. Enable again "USB debugging" and execute in the PC:
Code:
adb reboot bootloader
(to start again the tablet in fastboot mode)
Now copy the recovery file (the name may vary, with something like R.A.H.v3_TWRPv2.5.0.img) to the android-sdk/platform-tools/ folder with name "recovery.img" and execute:
Code:
fastboot flash recovery recovery.img
You will see something like:
Code:
C:\Users\sromero\Desktop\android-sdk-windows\platform-tools>
fastboot flash recovery recovery.img
sending 'recovery' (XXXXX KB)...
OKAY [ 0.499s]
writing 'recovery'...
OKAY [ 1.014s]
finished. total time: 1.529s
Check in the xoom's screen that the file was correctly written and execute:
Code:
fastboot reboot
Now disconnect the USB cable and enter recovery mode with:
- When the Motorola logo appears, tap Volume Down (not press, tap) repeteadly until "Android Recovery" is displayed in the screen.
- In this moment, pressing Volume Up will send you to Recovery Mode.
- If you press by mistake again Volume Down, you'll enter DRS mode. You can leave it with VolUP+VolDown+Power and try again (Xoom is powered off).
And you'll start the TWRP Recovery recovery system. If you see the standard Android recovery system instead of TWRP recovery, you can repeat the above "fastboot flash recovery recovery.img". You don't have to unlock the bootloader again, just flash the recovery software and reboot again in recovery mode with "fastboot reboot" and "adb reboot recovery".
(Photo: my Xoom in EOS6 recovery mode, TWRP is different, with better controls and more features )
You can start recovery mode also manually by powering on the Xoom and when the motorola logo appears, wait 3 seconds and press VolUp.
Now, you have your device unlocked and recovery installed. Now, you are SAFE because you can do nandroid backups and restores and can put any ROM in your system and go back with a backup or flash another different rom.
PART 2 .- HOW TO USE TWRP RECOVERY
How to enter in recovery mode:
A.- Manually:
- Turn Xoom off.
- Press Power to turn Xoom on.
- When the Motorola logo appears, tap Volume Down (not press, tap) repeteadly until "Android Recovery" is displayed in the screen.
- In this moment, pressing Volume Up will send you to Recovery Mode.
- If you press by mistake again Volume Down, you'll enter DRS mode. You can leave it with VolUP+VolDown+Power and try again (Xoom is powered off).
b.- From "adb" in a PC system with Android running on the tablet connected to that PC:
Executing "adb reboot recovery"
c.- With a custom ROM, selecting "reboot" will ask you if you want a normal reboot or a recovery-reboot.
How to use recovery mode:
Use the Volume Up and Volume Down keys to move between options and Power button to select an Option:
Code:
Up -> VolumeUp button
Down -> VolumeDown button
Select -> POWER button
Available options for a basic CWM / recovery are:
Reboot system now -> exit Recovery mode.
install zip from sdcard -> allows to install ZIPs to data partitions such as ROMs.
wipe data/factory reset -> delete all the contents in the data partition (needed before flashing a ROM)
wipe cache partition -> delete cache partition.
backup and restore -> allows doing "nandroid" backups and restore of our system (FULL MEMORY BACKUPS).
mounts and storage -> allows to mount aditional media to save/read data.
advanced -> extra options.
(Photo: Nandroid backup)
NOTE: TWRP is newer than the OLD EOS-recovery-6, the above capture and options may differ.
PART 3 .- HOW TO INSTALL EOS3 ROM:
Now we've installed recovery, so we don't need the PC anymore. We can enter in recovery mode at any moment and do backup/restores, flash new roms, flash updates, etc.
To install EOS3 ROM (or any other "full install" -not update- ROM, do):
Start the Xoom in recovery mode.
Backup/restore -> backup the current system to our external SD.
Wipe data/factory reset -> remove partition contents
Wipe cache -> delete the cache
Advanced -> Wipe Dalvik Cache
Advanced -> Wipe Battery Stats
Install ZIP from SDCARD -> /sources/ -> the eos3 rom .zip file.
Install ZIP from SDCARD -> /sources/ -> the gapps .zip file.
Reboot
Install gmail, youtube, etc from Market (not included anymore in gapps).
Enjoy your new rom!
PART 4 .- HOW TO UPDATE EOS3 ROM or install a new different ROM:
Start the Xoom in recovery mode.
Backup/restore -> backup the current system to our external SD.
Wipe data/factory reset -> remove partition contents
Wipe cache -> delete the cache
Advanced -> Wipe Dalvik Cache
Advanced -> Wipe Battery Stats
Install ZIP from SDCARD -> /sources/ -> the new rom .zip file.
Install ZIP from SDCARD -> /sources/ -> the gapps .zip file.
Reboot
Enjoy your new rom!
I hope this can help people to unlock their xooms.
Thanks to "wesamothman" and "Cubanluke88" for the initial support given and specially to EOS Team and the people that created ClockWorkMod for sharing their time, work and knowledge with us. They've converted my "slow xoom" in a very powerfull and fully functional tablet.
Couldn't expect less from you. Super great guide...
Sent from my MZ601 using Tapatalk 2
Post reserved for updates in case the initial post gets too large...
I wish all new Android users would do the level of research the OP did prior to making his initial question thread. We guided you a bit but if I remember right, your first post showed quite well that you had done your homework. If more people committed themselves to understanding what they're doing prior to doing it, I'd imagine there'd be a lot less "bricks" in the android world. Great work dude and nice job entering the forums with a bang.
Sent from my Xoom using Tapatalk 2
Thanks for your words...
In this thread I've tried not only to give a procedure (the forums and lots of websites are full of procedures) but also explain the concepts themselves (oem unlock, adb, fastboot, recovery mode, gapps, etc).
"Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime".
Thanks.
--
Sent from my Xoom with EOS3 ROM using Tapatalk 2
Updated with some pictures
Updated with links to v141...
eos 6 recovery.img not available
the recovery image file is not available in the link..could you update the link. Thank You !
Great tutorial
kakrikakri said:
the recovery image file is not available in the link..could you update the link. Thank You !
Great tutorial
Click to expand...
Click to collapse
Hi.
According to this URL, EOS6 RECOVERY.IMG has been deprecated:
http://forum.xda-developers.com/showthread.php?t=1604014
Now you can use Team Win Recovery Project 2.2, (TWRP):
http://forum.xda-developers.com/showthread.php?t=1782235
Flashing is almost similar to EOS6 recovery method described above, just check the last link.
NoP_Compiler said:
Hi.
According to this URL, EOS6 RECOVERY.IMG has been deprecated:
http://forum.xda-developers.com/showthread.php?t=1604014
Now you can use Team Win Recovery Project 2.2, (TWRP):
http://forum.xda-developers.com/showthread.php?t=1782235
Flashing is almost similar to EOS6 recovery method described above, just check the last link.
Click to expand...
Click to collapse
wow that was a quick reply.. THANKS (Y)
kakrikakri said:
wow that was a quick reply.. THANKS (Y)
Click to expand...
Click to collapse
Anyway, I have the eos-recovery-r6.img.zip file in my desktop, I can send you via email if you want to use it instead of TWRP (but you should not, as Team Eos recommends their new recovery system).
I'm going myself to update to TWRP this evening (they have a .zip file that you can flash from an existing recovery like my current "EOS6 recovery").
Same method for stock ics?
Sorry I am a bit paranoid..but will this same unlocking bootloader and flashing recovery method work for stock ics on my xoom?
Thanks !
Help !!! In a lot of trouble
I flashed the twrp recovery and then it rebooted..everything was perfect till that point
then i rebooted into recovery..and when i selected to install zip from usb drive..it said mount to sdcard failed (at this point the roms were downloaded in my internal storage) and it does not detect any zip files.
I tried putting the zip files on a proper micro sdcard and then rebooted into recovery..but still no luck.. it just says it failed to mount sdcard.
Special note:- and btw.. when i reboot into recovery and after pressing the vol up button there is a droid icon on my screen, but no 'recovery' menu shows up.. then i pressed volup+power button, this action popped up the list of menus of the recovery screen... (do u think this might be a problem?)
please help me i am panicking here..is there anyway i can flash a different recovery..like the eos recovery or the cmw?
HELP !!!!
kakrikakri said:
I flashed the twrp recovery and then it rebooted..everything was perfect till that point
then i rebooted into recovery..and when i selected to install zip from usb drive..it said mount to sdcard failed (at this point the roms were downloaded in my internal storage) and it does not detect any zip files.
I tried putting the zip files on a proper micro sdcard and then rebooted into recovery..but still no luck.. it just says it failed to mount sdcard.
Special note:- and btw.. when i reboot into recovery and after pressing the vol up button there is a droid icon on my screen, but no 'recovery' menu shows up.. then i pressed volup+power button, this action popped up the list of menus of the recovery screen... (do u think this might be a problem?)
please help me i am panicking here..is there anyway i can flash a different recovery..like the eos recovery or the cmw?
HELP !!!!
Click to expand...
Click to collapse
Twrp recovery doesnt mount external sdcard by default, you need to mount it first thru recovery. Just go to mounts and check the box to mount external sdcard
wesamothman said:
Twrp recovery doesnt mount external sdcard by default, you need to mount it first thru recovery. Just go to mounts and check the box to mount external sdcard
Click to expand...
Click to collapse
I am sorry i panicked.. I think its working fine now..i flashed a wrong recovery it seems.
May i ask ! if we are installing the eos 3 rom for the first time, does it take very long to boot the very first time?
because i my xoom is booting up after installing, and the eos logo is on display for more than 10-15 mins.. is it supposed to take this long?
kakrikakri said:
I am sorry i panicked.. I think its working fine now..i flashed a wrong recovery it seems.
May i ask ! if we are installing the eos 3 rom for the first time, does it take very long to boot the very first time?
because i my xoom is booting up after installing, and the eos logo is on display for more than 10-15 mins.. is it supposed to take this long?
Click to expand...
Click to collapse
First time ROM flashing is longer than normal booting, like 5 min ,
If you got stuck in boot loop, reboot into recovery using the power and sound keys combination and clear cache and dalvik and reboot again
kakrikakri said:
I am sorry i panicked.. I think its working fine now..i flashed a wrong recovery it seems.
May i ask ! if we are installing the eos 3 rom for the first time, does it take very long to boot the very first time?
because i my xoom is booting up after installing, and the eos logo is on display for more than 10-15 mins.. is it supposed to take this long?
Click to expand...
Click to collapse
Did you finally succeded "booting" EOS3?
NoP_Compiler said:
Did you finally succeded "booting" EOS3?
Click to expand...
Click to collapse
Yes it did and it works perfectly
Thank you NoP_Compiler and wesamothman
Sent from my Xoom using xda app-developers app
Just to say thanks for 1 of the best tutorials I have ever found,from stock ICS to eos 3 wingray nightly 151 in less than 20 mins. Only prob I had was android SDK wouldn't find x64 java on win had to install 32bit version on top but only hiccup
dead android in step 2
Hi,
Thanks for the great tutorial.
I got thru Step 1, using the image "openrecovery-twrp-2.3.1.0-wingray.img"
In Step 2, when I enter in recovery mode, I get a screen with a "dead droid" image.
Any idea about what I might be missing?
thanks!

[xt1920-15] [pettyl] stock firmware rooted latest ota updates fixed + 'badkey' fix

Just for the record, Motorola phones and normally quick and easy to ROOT however this is been a right pain in the ass. No guide on here has worked properly for the UK version anyway so soon after I found a working way i thought i would do this to help anyone else....
Requirements:
unlocked bootloader
THIS ZIP FILE
extract the files and open a cmd prompt in the ADB folder or run a cmd and us 'cd C:\adb\' [or location of the unzipped adb folder]
run 'fastboot boot recovery.img'
backup the cache partition so it creates the TWRP>BACKUPS>SERIAL>ROM folder
copy the rooted rom folder to TWRP>BACKUPS>SERIAL>*here* [ please note serial stands for the serial number of device and this will vary with each person]
hit restore, system + data + boot,
when finished reboot to recovery
you are now in the stock recovery so hold the power button and tap volume down to unlock the menu then you want to wipe data factory and just use data AND NOT the personalised content as well..
then reboot
do the initial set up.
then perform 2/3 system updates [security patches i believe? from the system settings > updates]
when all this is complete, afterwards click on magisk manager and let it update. It will then give you a warning error saying the version of magisk too old.
so power off your phone and then put it back into bootloader. [hold power + vol down from a powered off state]
use fastboot boot twrp_james.img [from cmd promt inside adb folder]
when the recovery loads in the same cmd prompt type adb push Magisk-v18.1.zip /sdcard/ [or u can just copy the zip file onto the storage if it shows up on ur pc]
install magisk 18.1 and then reboot to boot loader and use fastboot flash logo logo1.bin to remove bad key error
have been in a mad rush to get this done before i go work hopefully you can understand if there are any problems just msg me
TheLastAlphaUK said:
Requirements:
unlocked bootloader
THIS ZIP FILE
Click to expand...
Click to collapse
BACKUP MIRROR OF FILE [MEGA]
Hi there, im unable to backup the cache partition (showing as 0mb in cwm) think it may have something to do with encryption.
I have my phone in a somewhat usable state by restoring cwm backup i found on xda, but when booting custom recovery it will not mount /cache ,/data etc
Would love to follow your instructions, do you have any ideas
links are dead
I have unlocked the bootloader and flashed TWRP on this phone to root.
i have not found a live link for any LineageOS or other custom rom, but root still works on stock rom.
i have saved all the necessary files on my PC so if you need help just reply or message me

[Solved] Several unsuccessful attempts to root Ulefone armor 3WT.

I've been trying to root my Ulefone armor 3WT for about a year now and still haven't gotten anywhere.
Here is how far I've gotten so far (with issues);
1. Fastboot commands - Cannot do fastboot commands in CMD, correct drivers are installed. Fastboot in CMD cannot find the device when the phone boots into fastboot mode. I can use ADB just fine.
2. The MediaTek flash tool - Cannot find a proper .scatter file to flash to the phone, nor can I create one.
People seem to be having lots of luck with number one, but I cannot figure out how they're getting fastboot to work in CMD.
Would like some help from anyone that has rooted this type of phone, or just any suggestions to help me with this thing.
Solved, (by radiomean-uk) follow this guide:
Here is the relevant post (hope I don't break and rules...)
=====================================================
=====================================================
Instructions:
1. Flash recovery.img via spflashtool or platformtools.
2. Boot to TWRP.
Touchscreen is not working properly in TWRP on our gadgets. You need to use OTG cable and mouse. Skip enter password form. Default language is russian so you can choose your in options.
3. Install disable force encryption and magisk (if you need root) via TWRP.
4. Boot to system. Enjoy.
Download link (merge go ogle together)
drive.go ogle.com/open?id=1J0HlsJYTyJUGAHjIXYMDUXye4DD9kEAC
Click to expand...
Click to expand...
Click to collapse
Here is a clickable download link: https://drive.google.com/drive/folders/1J0HlsJYTyJUGAHjIXYMDUXye4DD9kEAC
For anyone following these are the steps i did (assuming you unlocked bootloader already):
1. Copy both zips to external sd as internal storage wont work at first
2. adb reboot bootloader
3. fastboot flash recovery recovery.img
4. unplug usb and hold power button until screen turns off
5. let go of power button, count to 2, press and hold power button and volume up together until screen turns back on
6. let go of power button when screen turns on but keep holding volume up until you see TWRP screen
7. as above post said, cancel password and swipe to enter main menu and then one square above the bottom right to enter the language menu
8. flash both zips from external sd card
9. format data (not wipe but format to get rid of encryption) - i rebooted after flashing the zips and had to go back to recovery again to format the data !THIS DOES A FACTORY RESET!
10. reboot to system this will cause it to be set up as new
11. reboot to recovery again, this time there should be no password and in install you should be able to see internal storage of the phone
12. flash magisk / anything else you want
Click to expand...
Click to collapse
oh oh i know
I had the same problem
You need a linux terminal or a linux system to use fastboot commands!! I found that the hard way...
I don't use sp flash tool so idk about the other question
TOG_WAS_HERE said:
I've been trying to root my Ulefone armor 3WT for about a year now and still haven't gotten anywhere.
Here is how far I've gotten so far (with issues);
1. Fastboot commands - Cannot do fastboot commands in CMD, correct drivers are installed. Fastboot in CMD cannot find the device when the phone boots into fastboot mode. I can use ADB just fine.
2. The MediaTek flash tool - Cannot find a proper .scatter file to flash to the phone, nor can I create one.
People seem to be having lots of luck with number one, but I cannot figure out how they're getting fastboot to work in CMD.
Would like some help from anyone that has rooted this type of phone, or just any suggestions to help me with this thing.
Click to expand...
Click to collapse
have you run the 15 sec adb fastboot installers?
maybe you can try powershell also https://github.com/PowerShell/powershell/releases
you need to add .\ in front of commands though.
hellofriendlymanveriosns said:
oh oh i know
I had the same problem
You need a linux terminal or a linux system to use fastboot commands!! I found that the hard way...
I don't use sp flash tool so idk about the other question
Click to expand...
Click to collapse
Yeah, I was actually just about to do that tonight. Hopefully, that'll work.
jjgvv said:
have you run the 15 sec adb fastboot installers?
maybe you can try powershell also https://github.com/PowerShell/powershell/releases
you need to add .\ in front of commands though.
Click to expand...
Click to collapse
I never gave PowerShell a try. I'll have to try it out.
Okay, just tried it. Powershell doesn't work either.
TOG_WAS_HERE said:
1. Fastboot commands - Cannot do fastboot commands in CMD, correct drivers are installed. Fastboot in CMD cannot find the device when the phone boots into fastboot mode. I can use ADB just fine.
Click to expand...
Click to collapse
To get fastboot working requires the "Android USB Driver" suitable to your phone is properly installed, too.
jwoegerbauer said:
To get fastboot working requires the "Android USB Driver" suitable to your phone is properly installed, too.
Click to expand...
Click to collapse
Yeah, I forgot to say I have the manufacture's driver installed.
Then it might be fastboot didn't get inplemented by OEM/carrier because they want their own tools to get used, for example MTK Flash Tool and /or SP Flash Tool. Who knows that for sure? Me not.
hellofriendlymanveriosns said:
oh oh i know
I had the same problem
You need a linux terminal or a linux system to use fastboot commands!! I found that the hard way...
I don't use sp flash tool so idk about the other question
Click to expand...
Click to collapse
TOG_WAS_HERE said:
Yeah, I was actually just about to do that tonight. Hopefully, that'll work.
Click to expand...
Click to collapse
Linux works for anyone wondering.
TOG_WAS_HERE said:
Linux works for anyone wondering.
Click to expand...
Click to collapse
I mean works for me you could try live boot.
does adb work?
hellofriendlymanveriosns said:
I mean works for me you could try live boot.
does adb work?
Click to expand...
Click to collapse
adb works on Linux and windows.
I do not have a Live disk.
Well. Fastboot works. But how do I get this thing rooted now?
I've flashed the phone with two recovery.img files so far. It doesn't seem to root it or change anything.
Used these two guides:
Ulefone Armor 3/3T customization
I just received my Ulefone Armor 3 and started customization. (http://ulefone.com/products/armor3/features.html) So far I have came upon several issues, some of which you'll find below: 1) I have searched everywhere for a TWRP port and root...
forum.xda-developers.com
unofficial twrp 3.3.1 Root Ulefone Armor 3W - unofficial twrp
Download twrp 3.3.1 Root Ulefone Armor 3W, user who own Ulefone Armor 3W can root it by following the below instructions
unofficialtwrp.com
See this thread... On the first page are the files (TWRP etc) that you need, and the instructions. I have rooted my 3WT in the past two days sucessfully. Good luck.
Here is the relevant post (hope I don't break and rules...)
=====================================================
=====================================================
Instructions:
1. Flash recovery.img via spflashtool or platformtools.
2. Boot to TWRP.
Touchscreen is not working properly in TWRP on our gadgets. You need to use OTG cable and mouse. Skip enter password form. Default language is russian so you can choose your in options.
3. Install disable force encryption and magisk (if you need root) via TWRP.
4. Boot to system. Enjoy.
Download link (merge go ogle together)
drive.go ogle.com/open?id=1J0HlsJYTyJUGAHjIXYMDUXye4DD9kEAC
Click to expand...
Click to collapse
Here is a clickable download link: https://drive.google.com/drive/folders/1J0HlsJYTyJUGAHjIXYMDUXye4DD9kEAC
For anyone following these are the steps i did (assuming you unlocked bootloader already):
1. Copy both zips to external sd as internal storage wont work at first
2. adb reboot bootloader
3. fastboot flash recovery recovery.img
4. unplug usb and hold power button until screen turns off
5. let go of power button, count to 2, press and hold power button and volume up together until screen turns back on
6. let go of power button when screen turns on but keep holding volume up until you see TWRP screen
7. as above post said, cancel password and swipe to enter main menu and then one square above the bottom right to enter the language menu
8. flash both zips from external sd card
9. format data (not wipe but format to get rid of encryption) - i rebooted after flashing the zips and had to go back to recovery again to format the data !THIS DOES A FACTORY RESET!
10. reboot to system this will cause it to be set up as new
11. reboot to recovery again, this time there should be no password and in install you should be able to see internal storage of the phone
12. flash magisk / anything else you want
radiomean-uk said:
Here is the relevant post (hope I don't break and rules...)
=====================================================
=====================================================
Here is a clickable download link: https://drive.google.com/drive/folders/1J0HlsJYTyJUGAHjIXYMDUXye4DD9kEAC
For anyone following these are the steps i did (assuming you unlocked bootloader already):
1. Copy both zips to external sd as internal storage wont work at first
2. adb reboot bootloader
3. fastboot flash recovery recovery.img
4. unplug usb and hold power button until screen turns off
5. let go of power button, count to 2, press and hold power button and volume up together until screen turns back on
6. let go of power button when screen turns on but keep holding volume up until you see TWRP screen
7. as above post said, cancel password and swipe to enter main menu and then one square above the bottom right to enter the language menu
8. flash both zips from external sd card
9. format data (not wipe but format to get rid of encryption) - i rebooted after flashing the zips and had to go back to recovery again to format the data !THIS DOES A FACTORY RESET!
10. reboot to system this will cause it to be set up as new
11. reboot to recovery again, this time there should be no password and in install you should be able to see internal storage of the phone
12. flash magisk / anything else you want
Click to expand...
Click to collapse
This seems promising, this is the only image I've found that got TWRP installed. Although, It looks like the touch screen will not work in the TRWP recovery mode. I'll have to try to find a USB-C male to USB-A female adapter for a mouse.
radiomean-uk said:
Here is the relevant post (hope I don't break and rules...)
=====================================================
=====================================================
Here is a clickable download link: https://drive.google.com/drive/folders/1J0HlsJYTyJUGAHjIXYMDUXye4DD9kEAC
For anyone following these are the steps i did (assuming you unlocked bootloader already):
8. flash both zips from external sd card
Click to expand...
Click to collapse
So, I'm stuck here. I'm unable to get those .zip files to my phone. I've tried doing the SDcard like you said, twrp doesn't list it anywhere. (Maybe it only accepts a particular SDcard format?)
I have also tried an ADB Sideload which just gets stuck on 0% when transferring a file. Both on Linux Ubuntu, and Windows 10.
A flash drive or any USB storage isn't really an option as I have to use it for a mouse.
You need a usb hub so you can plug in a mouse and a flash drive - TWRP is a bit shaky!
Put the zip files on the (external) usb drive and you will be fine...
This is the full thread - https://forum.xda-developers.com/t/ulefone-armor-3w-3wt.3969217/page-8#post-84304395
Cheers!
radiomean-uk said:
You need a usb hub so you can plug in a mouse and a flash drive - TWRP is a bit shaky!
Put the zip files on the (external) usb drive and you will be fine...
Click to expand...
Click to collapse
To my surprise, I found a USB hub, however, I'm unable to find the USB drive. Where exactly do I find it?
I've looked through Select Storage, And Mount.
With some research, I've found that the USB is supposed to be under OTG. But it doesn't let me select it... So, I guess I'm SOL?
EDIT: With my stupidity at fault. I never checked if the USB drive had a secure connection... I didn't, I now reseated it properly and am now installing what is needed.
radiomean-uk said:
You need a usb hub so you can plug in a mouse and a flash drive - TWRP is a bit shaky!
Put the zip files on the (external) usb drive and you will be fine...
This is the full thread - https://forum.xda-developers.com/t/ulefone-armor-3w-3wt.3969217/page-8#post-84304395
Cheers!
Click to expand...
Click to collapse
Thank you for helping. My phone is now rooted!
radiomean-uk said:
Here is the relevant post (hope I don't break and rules...)
=====================================================
=====================================================
Here is a clickable download link: https://drive.google.com/drive/folders/1J0HlsJYTyJUGAHjIXYMDUXye4DD9kEAC
For anyone following these are the steps i did (assuming you unlocked bootloader already):
1. Copy both zips to external sd as internal storage wont work at first
2. adb reboot bootloader
3. fastboot flash recovery recovery.img
4. unplug usb and hold power button until screen turns off
5. let go of power button, count to 2, press and hold power button and volume up together until screen turns back on
6. let go of power button when screen turns on but keep holding volume up until you see TWRP screen
7. as above post said, cancel password and swipe to enter main menu and then one square above the bottom right to enter the language menu
8. flash both zips from external sd card
9. format data (not wipe but format to get rid of encryption) - i rebooted after flashing the zips and had to go back to recovery again to format the data !THIS DOES A FACTORY RESET!
10. reboot to system this will cause it to be set up as new
11. reboot to recovery again, this time there should be no password and in install you should be able to see internal storage of the phone
12. flash magisk / anything else you want
Click to expand...
Click to collapse
I'm also attempting to
TOG_WAS_HERE said:
I've been trying to root my Ulefone armor 3WT for about a year now and still haven't gotten anywhere.
Here is how far I've gotten so far (with issues);
1. Fastboot commands - Cannot do fastboot commands in CMD, correct drivers are installed. Fastboot in CMD cannot find the device when the phone boots into fastboot mode. I can use ADB just fine.
2. The MediaTek flash tool - Cannot find a proper .scatter file to flash to the phone, nor can I create one.
People seem to be having lots of luck with number one, but I cannot figure out how they're getting fastboot to work in CMD.
Would like some help from anyone that has rooted this type of phone, or just any suggestions to help me with this thing.
Solved, (by radiomean-uk) follow this guide:
Click to expand...
Click to collapse
I tried the steps that are mentioned in this thread with my Ulefone Armor 3W and was unsuccessful. I've been trying to attempt to root my phone for too long. I'm running a Linux Mint OS on both desktop/laptop and since I'm also a noob with Linux OS I've been struggling to make it work.
Any help is appreciated, especially since this thread is already solved.
Thank you in advance for any help

[OnePlus6] Phone frozen (bricked?) while installing Kali NetHunter.

Wanted to install NetHunter on my phone to learn. Here is a story of a foolish student decided to make his life difficult:
Device: OnePlus 6
Model: A6000
Android 10
Here are the steps I followed:
Followed these two documentations:
1) https://www.kali.org/docs/nethunter/installing-nethunter/#1-nethunter-support-and-pre-built-images
2) https://www.kali.org/docs/nethunter/
So downloaded the zip image > put android in developer mode with OEM and advanced reboot and debugging enabled > Fastboot menu
Then I followed this guide for step 3-5 from link 1:
https://forum.xda-developers.com/t/...-flash-twrp-root-nandroid-efs-backup.3792643/
(a little bit google reading said TWRP takes care of A/B style devices by itself no special steps needed)
Set up the windows machine with fastboot, adb and device drivers > run the command "fastboot oem unlock" > transferred twrp zip to the device internal storage > then flashed the new recovery mode "fastboot boot twrp.img" > install and selected the twrp zip that I had saved in internal storage before > reboot > system.
So far worked perfectly.
Then I downloaded the Magisk apk from github and installed it by transferring it to internal storage.
Next for step 6 from link 1:
I again download the ForceEncrypt disabler from zip and transfer it to internal storage then flash it using TWRP.
So far no errors.
Now the final step should have been to flash the nethunter zip image and this is where the problems started:
I tried to flash it using TWRP but it gave me an error about there not being enough storage.
Saw a YT video where he extracts the nethunter zip and via the magisk app does a install on the tar file found inside the extracted folder. This also failed.
After a bit google it said it was because I did not have custom ROM and chroot and lineageOS should solve my problem.
I flash the LineageOS zip image using TWPR > successful but says I should switch the slot to complete the zip files installed.
After switching and rebooting, fastboot goes to lineage always and its a bootloop , so no matter what I select its always reaching the same screen and I cant tranfer zip to internal anymore to try a different build.
So now I run the command fastboot boot twrp.img again and go back to slot A.
Now my phone is stuck in bootloader. No matter what option I select out of the 4:
Start
Recovery mode
restart bootloader
power off
(latter two work as expected technically)
I always end up on the same screen.
After connecting the phone it is showing it as connected in "fastboot devices" now but fastbood is not able to flash or boot any image to it: either freezes or unknown error. "adb devices" shows no devices.
Practically begging for help right now.
To fix your phone, you should use this recovery tool.
https://forum.xda-developers.com/t/op6-latest-10-3-8-collection-of-unbrick-tools.3914109/
You can follow a tutorial like this one
Good luck
You haven't chosen the right place to ask for help. delete your post or change it to "Questions and answer". Have a good day.
d
CarlosTime said:
You haven't chosen the right place to ask for help. delete your post or change it to "Questions and answer". Have a good day.
Click to expand...
Click to collapse
Thank you. I am trying the suggested video right now.
Do you also know why I get the storage error while trying to flash nethunter?
take it easy, relax i have a long story with oneplus too
send me msg on telegram so i can help u 98%
uaername : NotReal0
stay safe bro, and dont worry i dont need you money just bc im noob with english so i just know that u damaged ur phone and i know how to fix
saffron_jedi said:
Wanted to install NetHunter on my phone to learn. Here is a story of a foolish student decided to make his life difficult:
Device: OnePlus 6
Model: A6000
Android 10
Here are the steps I followed:
Followed these two documentations:
1) https://www.kali.org/docs/nethunter/installing-nethunter/#1-nethunter-support-and-pre-built-images
2) https://www.kali.org/docs/nethunter/
So downloaded the zip image > put android in developer mode with OEM and advanced reboot and debugging enabled > Fastboot menu
Then I followed this guide for step 3-5 from link 1:
https://forum.xda-developers.com/t/...-flash-twrp-root-nandroid-efs-backup.3792643/
(a little bit google reading said TWRP takes care of A/B style devices by itself no special steps needed)
Set up the windows machine with fastboot, adb and device drivers > run the command "fastboot oem unlock" > transferred twrp zip to the device internal storage > then flashed the new recovery mode "fastboot boot twrp.img" > install and selected the twrp zip that I had saved in internal storage before > reboot > system.
So far worked perfectly.
Then I downloaded the Magisk apk from github and installed it by transferring it to internal storage.
Next for step 6 from link 1:
I again download the ForceEncrypt disabler from zip and transfer it to internal storage then flash it using TWRP.
So far no errors.
Now the final step should have been to flash the nethunter zip image and this is where the problems started:
I tried to flash it using TWRP but it gave me an error about there not being enough storage.
Saw a YT video where he extracts the nethunter zip and via the magisk app does a install on the tar file found inside the extracted folder. This also failed.
After a bit google it said it was because I did not have custom ROM and chroot and lineageOS should solve my problem.
I flash the LineageOS zip image using TWPR > successful but says I should switch the slot to complete the zip files installed.
After switching and rebooting, fastboot goes to lineage always and its a bootloop , so no matter what I select its always reaching the same screen and I cant tranfer zip to internal anymore to try a different build.
So now I run the command fastboot boot twrp.img again and go back to slot A.
Now my phone is stuck in bootloader. No matter what option I select out of the 4:
Start
Recovery mode
restart bootloader
power off
(latter two work as expected technically)
I always end up on the same screen.
After connecting the phone it is showing it as connected in "fastboot devices" now but fastbood is not able to flash or boot any image to it: either freezes or unknown error. "adb devices" shows no devices.
Practically begging for help right now.
Click to expand...
Click to collapse
I had the same issue after trying to install nethunter myself. Unfortunately for me the MSMDownload tool wouldn't work because I couldn't get the phone to stay off, it would just boot back up into bootloader/fastboot mode as soon as I connected to the computer via usb cable.
Here's the solution that will work 100%. Go to this website below and download the stock OOS zip file for your phone, in my case it was the Oneplus 6T fastboot ROM. Unpack the files into your platform-tools folder, click skip all if it asks you if you want to replace any files in that folder, then run the flash-all.bat and it will unbrick your device. Keep in mind that it will unroot your device and remove twrp as well. There's a thread here that explains how to do it manually so that doesn't happen but its a bit of work to get it done that way.
FastbootRoms Activity
sourceforge.net

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