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FIRST AND FOREMOST: DISCLAIMER,
I am not responsible for any steps your take in modifying or following the steps described below. This is simply a guide to assist you with restoring your phone. If your break, drop, ruin, brick, wipe, slap, chop, honk, ding, open, slave or unock your phone and it does not respond how you expected sorry your phone, your responsibility.
What is described below worked for me.
Ok, after searching for hours or nearly days for a way to unroot and get back tot he stock rom that allows for Over the Air Updates (OTA's) I finally figured it out after piecing together tons of threads on related subjects.
Anyway here it is...
On my nexus one I was using a CyanogenMod Rom and wanted to revert back to stock because of a few glitches I didn't like. I was presented with tons of problems when trying to do so. This is what I did.
For dummies version:
GET THE NECESSARIES
(1) Downloaded the stock ROM FRG83 from Modaco HERE
(2) Unzipped this to a folder I created on my PC (I named it Platform-Tools)
(3) Downloaded and Installed the Android SDK. This comes with ADB and driver for your phone which is a must need. HERE
(4) Copied all files from the android/android-sdk/platform-tools folder to the folder I created earlier in step 2.
(5) Downloaded fastboot command (Available in attachment below)
(6) Downloaded flash_image.zip (Available in attachment below) (Optional - flash_image.zip only needed if using ADB method and is not described below or recommended)
UNLOCK BOOT LOADER
(1) Unlock Boot Loader (Yeah you have to do it). If not done you will get an error saying unable to verify signature when trying to load the img files.
-Boot in to boot loader by Powering on your phone while holding down the trackball
-Connect phone to your pc using a usb data cable
-on the boot screen it should say something like "fastboot usb" after doing so
-Type fastboot oem unlock
-Read the warning and accept it
(2) Boot in to boot loader by Powering on your phone while holding down the trackball
(3) Should say unlocked at the top
PHONE UNLOCKED AND READY TO FLASH YOUR PHONE TO STOCK
(1) If not done already Boot in to boot loader by Powering on your phone while holding down the trackball
(2) Connect phone to your PC with a USB Data Cable
(3) From your PC command prompt change directory to where you save your img files and the fastboot command stuff
(4) Type The Following In Sequence from your PC Command prompt:
fastboot flash boot (YOUR DIRECTORY)\boot.img
fastboot flash recovery (YOUR DIRECTORY)\recovery.img
(5) Boot in to recovery
-Select bootloader from the menu
-Select recovery from the next menu
(Wait, a triange with an exclamation mark appears)
-Press the power button along with the up volume button
(Boots to the android recovery menu)
-Wipe everything
(6) Reboot in to the boot loader and Type The Following from your PC command prompt In Sequence
fastboot flash radio (YOUR DIRECTORY)\radio.img
fastboot flash system (YOUR DIRECTORY)\system.img
When done reboot and enjoy your fully restored un-rooted back to stock nexus one and enjoy all your OTA Updates as they are released.
If there is something I missed or needs correction let me know and I will make necessary revisions.
pardon my ignorance but i was under the understanding that the Nexus One already ran Stock android
ThunderStick said:
FIRST AND FOREMOST:
Anyway here it is...
On my nexus one I was using a CyanogenMod Rom and wanted to revert back to stock because of a few glitches I didn't like. I was presented with tons of problems when trying to do so. This is what I did.
johnston9234 said:
pardon my ignorance but i was under the understanding that the Nexus One already ran Stock android
Click to expand...
Click to collapse
At the start he mentioned he was running cyanogenmod (quoted)...it's also mentioned in his signature.
Click to expand...
Click to collapse
Anybody that needs to download and flash an Original ROM obviously didn't follow the first rule of flashing. NANDROID BACKUP YOUR STOCK ROM FIRST!!!
To return to stock for OTA updates all you need to do is restore your Nandroid backup and reboot once. That's all.
Hi Folks,
Disclosure: No responsibility taken or accepted in any form if the following process failed.
As forum rules prevented me from posting links try to understand how to find referred files.
1. Prepare a PC with Windows 7 installed and the automatic Windows driver update lookup function possibly disabled.
2. Download BETA-SuperSU-v2.49.zip (appr. 4 MB, from chainfire eu and copy it to the phone's SD card or to an external micro SD card.
3. Download the latest stock ROM and flash tool packed together (e.g. 'Be-Touch-2_150702_s7yler.zip') from needrom com . Search for ulefone-be-touch-2.
4. Download TWRP recovery image file from needrom com . Search for be-touch-2-twrp-2-8-7-0.
Extract the rar archive and rename recoverye.img to recovery.img
5. Extract 'Be-Touch-2_150702_s7yler.zip' and replace the recovery.img file in the "Be-Touch-2_150702_s7yler\One Key Flashing(Be Touch 2_150702)\software" folder with the one from the TWRP archive (see point 2).
6. Install the MTK chipset driver (it works on Win7 only at the present time):
- Navigate to the "Be-Touch-2_150702_s7yler\One Key Flashing(Be Touch 2_150702)\Driver Auto Installer" folder.
- Open a Command Window to see what happens on the command line.
- Run Install.bat with real Administrator priviledges (in most cases Run as Administrator may not be enough - refer to UAC).
- Wait until the driver installation is finished. You will see on the screen if the drivers were installed successfully (e.g. "Driver install done").
7. Flashing ROM
Notes:
- Flashing ROM will wipe all your data. If you have not done a backup before you will permanently lose your data!
- The doc file containing pictures included in the zip file can also be followed.
- Do NOT format your phone with the flashing tool, that can result in lost IMEI.
- For anvanced users: the flash_tool.exe in the Smart Phone Flash Tool package can also be used only to flash recovery.img using an enclosed scatter.txt file.
a/ Open the Be-Touch-2_150702_s7yler\One Key Flashing folder and run SP_Facility_DL_Tool.exe
b/ Turn off the phone, take out the battery, press the Scan button in the SP_DownLoad window then connect your phone to the PC via USB.
c/ After the text "N/A+COM(x)" appears on the left hand side of the window disconnect your phone, reinsert the battery, press the Start button and reconnect your phone via the USB cable.
d/ Wait until the flashing utility finishes updating the phone (e.g. the process bar shows 100 % on yellow background and "DL OK" can be read to the left of the process bar).
8. After flashing, enter the TWRP custom recovery: press vol up + power to boot for a few seconds then install BETA-SuperSU-v2.49.zip from your (external) SD card.
9. You are done with rooting.
Fastboot
litokraz said:
- Flashing ROM will wipe all your data if you have not done a backup before!
- The doc file containing pictures included in the zip file can also be followed.
- Do NOT format your phone with the flashing tool, that can result in lost IMEI.
- For anvanced users: the flash_tool.exe in the Smart Phone Flash Tool package can also be used only to flash recovery.img using an enclosed scatter.txt file.
Click to expand...
Click to collapse
Again, for advanced users: You can also use fastboot (get it elsewhere) to flash just the TWRP recovery without wiping the rest of the phone: (e.g. "fastboot.exe flash recovery recovery-betouch2.img"), then use it to install supersu. You can also then flash the stock recovery back over it if you wish. Works like a charm.
marblemunkey said:
Again, for advanced users: You can also use fastboot (get it elsewhere) to flash just the TWRP recovery without wiping the rest of the phone: (e.g. "fastboot.exe flash recovery recovery-betouch2.img"), then use it to install supersu. You can also then flash the stock recovery back over it if you wish. Works like a charm.
Click to expand...
Click to collapse
Yes you are right. The method I described above also updates to the latest(?) Ulefone ROM as of 02-07-2015.
Even you can flash a Carlive recovery (tried and works) based on the downloadable from the "Ulefone Be Touch 2, 5.5 Inch Full HD, Metal Frame, MT6752 64-bit, 3050mAh Battery" thread Post #76. Carlive (originated from CWM) lacks the annoying splash screen which is included in TWRP.
UPDATE: Never mind, I got it. WooHoo
Guys, how do I get to Fastboot mode on my BE Touch 2? I tried power + volume down, yet it takes me to chinese menu I do not understand.
Odesláno z mého Be Touch 2 pomocí Tapatalk
Thank you Litakraz .... Good job done ... works like charm ..well explained
marblemunkey said:
Again, for advanced users: You can also use fastboot (get it elsewhere) to flash just the TWRP recovery without wiping the rest of the phone: (e.g. "fastboot.exe flash recovery recovery-betouch2.img"), then use it to install supersu. You can also then flash the stock recovery back over it if you wish. Works like a charm.
Click to expand...
Click to collapse
Hi, i have one Be Touch 2 and i can't find the fastboot mode in my recovery mode ( chinese recovery )
here is a screenshot of a similar recovery mode i got
youtu.be/RwpUyc7ig5w
Can you explain how to enter in Fastboot mode please ?
Thanks
Sorry for my bad english
UPDATE : I finally tried the command "adb reboot bootloader"
and after this I was able to flash recovery.img with fastboot (fastboot flash recovery recovery.img)
but i still can't boot on TWRP (still chinese bootloader)
C:\adb>fastboot flash recovery recovery.img
target reported max download size of 134217728 bytes
sending 'recovery' (13540 KB)...
OKAY [ 0.458s]
writing 'recovery'...
OKAY [ 0.207s]
finished. total time: 0.665s
UPDATE 2 :
My bad, to enter in TWRP mode reboot the phone using POWER+VOL UP
worked like a charm with the recovery img from needrom , thanks !
PS : /!\ AVOID TO UPDATE YOUR DEVICE OR YOU WILL BE BLOCKED ON THE ULEFONE LOGO !!! /!\
dkpiit said:
Hi, i have one Be Touch 2 and i can't find the fastboot mode in my recovery mode ( chinese recovery )
here is a screenshot of a similar recovery mode i got
youtu.be/RwpUyc7ig5w
Can you explain how to enter in Fastboot mode please ?
Thanks
Sorry for my bad english
UPDATE : I finally tried the command "adb reboot bootloader"
and after this I was able to flash recovery.img with fastboot (fastboot flash recovery recovery.img)
but i still can't boot on TWRP (still chinese bootloader)
C:\adb>fastboot flash recovery recovery.img
target reported max download size of 134217728 bytes
sending 'recovery' (13540 KB)...
OKAY [ 0.458s]
writing 'recovery'...
OKAY [ 0.207s]
finished. total time: 0.665s
UPDATE 2 :
My bad, to enter in TWRP mode reboot the phone using POWER+VOL UP
worked like a charm with the recovery img from needrom , thanks !
Click to expand...
Click to collapse
Tried that method, always get stuck in <waiting for device> !!!
Any advice ???
Heshamvido said:
Tried that method, always get stuck in <waiting for device> !!!
Any advice ???
Click to expand...
Click to collapse
Yes, just download and install adbdriver[DOT]com/downloads/
Thanks to the OP for the guide. I am now rooted & the phone is working perfectly.
Now just waiting for cyanogenmod to be released for it & I'll be a happy man.
Is there a way to root the Ulefone be touch one which is compatible with the last firmware ? (15/08/11)
The solution given by @Pasi_K don't work with the update
Darkstar2r1 said:
Is there a way to root the Ulefone be touch one which is compatible with the last firmware ? (15/08/11)
The solution given by @Pasi_K don't work with the update
Click to expand...
Click to collapse
I am curious on that too! Did you get it running?
I will try a different recovery.... hope that works.
hi guys..
anyone has NVRAM for this device..? it is black screen now but it is working..
655/5000
Hello everybody,
I have a small or big problem.
I wanted to flash a new ROM. Unfortunately, I can not flash the TWRP.
Each time:
PHP:
C: \ Users \ Marcel \ Downloads \ adb 1.0.36 and fastboot> fastboot flash recovery twrp-3.1.1-0-frd.img
Target reported max download size of 471859200 bytes
Sending 'recovery' (25184 KB) ...
OK [0.544s]
Writing 'recovery' ...
FAILED (remote: Command not allowed)
finished. Total time: 0.557s
In Fastboot mode, PHONE is unlocked (in red) and FRP lock (in green). Does the FRP have anything to do with it?
Since then I can not use the Honor Recovery. He wants to download something, but that does not work.
Also with the "dload" upgrade he makes a rebootart and the Screen " YOur devices is booting now..."
Can anyone give me a hint?
It's the FRP lock. Delete all the Google accounts on your phone, that should free up the FRP lock and let you flash recovery.
Hello,
Thank you very much. About settings I could disable the FRP.
FRP and Phone ist UNLOCK.
TWRP I can copy. About the one Huawei multitool I came 1 time in the recovery mode. There I made a wipe. The installation of the new Custom Rome did not work (Error Code 7).
Now I'm only in the fastboot mode. In the TWRP I come no more pure.
The mobile phone is constantly running again.
It is not recognized in the Huawei Multitool. From the console (cmd) I can use fastboot mode.
How can I save it?
I've never used the multitool, so I can't help you there. I always flash directly from ADB.
Via the cmd I can copy the recovery (twrp). But if I want to restart the devices, the twrp does not start. Therefore, I try the tool.
It is very annoying that you can not just start the twrp.
Also delete or copy system, boot, etc is not (FAILED (remote: Command not allowed))
Use the button combo to get into TWRP. Power the device off, then hold down Power + Vol Up. When you feel the short vibrate, let go of power, keep holding Vol Up. It should boot you into TWRP.
many thanks for the help. Apparently I must be too stupid for it.
I have only 2 options.
1. Volume down (-) with power to fastboot mode.
2. Volume high (+) (the topmost pressure point (head)) with power. Here I get into the overview:
Your devices has been unlocked and can't be trusted.
(1) Presspower key to continue
(2) Press VOlumen Up key to 2 Secondary to restore your device.
(3) Your devices will continue to boot 5 seconds later if there is no operation
No matter how, it always stands YOur devices is booting now ...
After a few minutes he makes a reboot
EDIT: After I have done the Unbrick with the tool, the mobile phone starts again. But if I install TWRP or get to use, then it is only version 3.0.2.0
Root your "Barns & Noble Nook 7" BNTV450 using Magisk's Patch Boot Image File option.
BE CAREFUL!
There are always risks involved when you start messing around with a device.
If something goes wrong, you may end up with a non-working "bricked" device.
This is especially true when you start flashing partitions. (In this case boot.)
Disclaimer
I am not responsible for your non-working "bricked" devices.
I have a few of my own.
Requirements
Barns & Noble Nook 7" BNTV450
A computer with working adb and fastboot
USB cable
WiFi connection
Magisk Manager (Link below)
Stock boot image (Link below)
Tested on:
BNTV450-v1.0.2-20161230 Security patch October 5, 2016
BNTV450-v2.0.4-20170927 Security patch August 5, 2017
BNTV450-v2.0.5-20170110 Security patch November 5, 2017 ota update
macOS 10.13.x
Windows 7 Pro
Steps
Unlock bootloader
Boot Magisk patched boot image
Pull stock boot and recovery images from device
Use Magisk to patch pulled stock image
Test and flash new patched boot image
Notes:
Google updates were needed to get everything working correctly.
PlayServices and WebView
Mac users. As with some other devices, I had to unplug and plugin the USB cable between some of the fastboot commands.
fastboot flash boot patched_boot.img and fastboot boot bntv4-recovery.img
Magisk:
There have been a lot of changes in Magisk since I originally used it to root.
Way too many to mention so, just the basics that apply to this device.
Newer versions of Magisk use the Download directory instead of creating and using the MagiskManager directory.
Some apps search for this directory and used it to determine if the device is rooted.
If you previously used Magisk to root and have a MagiskManager directory, you will want to delete it.
To update Magisk Manager.
Use the update option, it will download and install the newest version.
To update Magisk.
The safest way is to patch the boot image again. Test and flash.
The Direct Install option works but, may lead to a non-desirable outcome.
To uninstall Magisk.
Test boot your original boot image to make sure it works.
Check with Magisk Manager, it should say Magisk not installed.
If so, then flash your stock boot image back using fastboot.
If your stock boot image will not boot, then you are stuck with Magisk patched boot images.
Hardware Keys:
Power and Volume Up = Recovery Mode
Power and Volume Down = Factory Mode
It will show on the bottom Left (Sideways on the top left) Detecting boot mode. With bootloader unlocked it flashes this message very fast so you might not see it.
I still can not produce the same results continuously across mine. The newer ones, that came with v2.0.5 seem to work but, the older ones still it's a 50 % chance if I can get it to work. The bricked ones, do not seem to register the key combo on boot.
Files Needed
Magisk
xda Magisk forum. Link
Magisk and MagiskManager Official github downloads. Link
Boot Images
Magisk patched boot image downloads. Link
Stock recovery and boot image downloads. Link
Credits and Thank You:
@topjohnwu - The creator and brilliant mind behind Magisk.
Everyone who has helped me learn through the years.
Last edited 23.Sep.2018
"QUICK" Guide - BNTV450 Nook 7
Unlock Bootloader
THIS WILL VOID YOUR WARRANTY.
Unlocking the bootloader WILL wipe and Factory Reset your device. Make sure to copy, backup and logout of everything before you begin.
Note: adb and fastboot need to be installed and working.
On device
Go to Settings - About and tap on the build number seven times to enable Developer options.
Go to Settings - Developer options and Enable OEM unlocking and USB debugging
Connect to computer and Allow USB debugging?
On computer
Code:
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot flashing unlock
On device
Follow the prompts on the device.
Unlock bootloader?
If you unlock the bootloader,you will be able to install custom operating system software on this phone.
A custom OS is not subject to the same testing as the original OS, and can cause your phone and installed applications to stop working properly.
To prevent unauthorized access to your personal data,unlocking the bootloader will also delete all personal data from your phone(a "factory data reset").
Press the Volume UP/Down buttons to select Yes or No.
Yes (Volume UP):Unlocking(may void warranty).
No (Volume Down): Do not unlock bootloader.
After it returns to fastboot mode, use the power button to turn off, unplug it from computer and then turn on.
It will reboot a few times, including an Erasing... screen.
Once device reboots, run through the initial setup.
Note: Sometimes mine would get stuck on the nook .... animation screen. Give it a few minutes (I wait at least 5 minuets) then power off and power back on.
Note: You will now have the annoying boot delay and "Orange State" message.
Orange State
Your device has been unlocked and can't be trusted
Your device will boot in 5 seconds
"QUICK" Guide - BNTV450 Nook 7
Root using Magisk.
MagiskManager 6.0.0 Download
Magisk 17.2 patched v2.0.5 Download
Using Magisk Manager and the provided Magisk patched boot image.
Note: When booting an image from "fastboot", you should not see the initial "orange boot" screen.
Make sure to grant permission if and when prompted on device.
Some of the adb and fastboot commands may require input on the device.
On device
Go to Settings - About and tap on the build number seven times to enable Developer options.
Go to Settings - Developer options and Enable USB debugging
Connect to computer and Allow USB debugging?
On computer
Code:
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot boot m172_v205_boot.img
Wait for device to boot then.
Reminder. Make sure to grant permission if and when prompted on device.
Code:
adb install -r MagiskManager-v6.0.0.apk
adb shell su -c "dd if=/dev/block/mmcblk0p7 of=/sdcard/bntv4-boot.img"
adb shell su -c "dd if=/dev/block/mmcblk0p8 of=/sdcard/bntv4-recovery.img"
adb pull /sdcard/bntv4-boot.img
adb pull /sdcard/bntv4-recovery.img
Test the images you just made.
Code:
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot boot bntv4-recovery.img
Wait for device to boot into recovery mode then.
On device
In Stock Recovery use the volume down key to highlight Reboot to bootloader and press the power button.
Wait for device to boot into fastboot mode then.
On computer
Code:
fastboot boot bntv4-boot.img
Wait for device to boot then.
On device:
If you haven't setup WiFi, do so now.
Open MagiskManager
Tap on Install
Select Install
Select Patch Boot Image File
Tap on Internal storage
- Note: If Internal storage is not displayed. Tap on the 3-dot menu (upper right corner) and select Show SD card.
Scroll down and tap on bntv4-boot.img
When Magisk is done patching the image file, select CLOSE
You can close MagiskManager as well.
Copy and test your Magisk patched boot image.
On computer
Code:
adb pull /sdcard/download/patched_boot.img
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot boot patched_boot.img
On device
Open MagiskManager
Note: You should see that Magisk is installed and active.
To do a quick check.
On Computer
Code:
adb shell
[email protected]:/ $su
[email protected]:/ #exit
[email protected]:/ $exit
If it worked, and you are ready to say goodbye to stock Non-root.
Code:
adb reboot bootloader
fastboot flash boot patched_boot.img
fastboot boot bntv4-recovery.img
Once it's booted into Recovery, unplug the device.
On device
In Stock Recovery use the volume down key to highlight Wipe cache partition and press the power button.
-- Wiping /cache...
Formatting /cache...
Cache wipe complete.
Then with Reboot system now highlighted press the power button.
You are now rooted and running Magisk.
Last edited 23.Sep.2018
Links to my shell logs.
Unlock bootloader. Pastbin
Root. Pastbin
volume button does not react
Hi
unlocking does not work
As mentioned in the other discussion, the volume up button does not seem to react and so the unlocking does not work. Also one user suggested using the reset button after pressing the volume up button for the unlock; that also does not work for me
Do u have any other suggestions to unlock ?;
arrmusic said:
Hi
unlocking does not work
As mentioned in the other discussion, the volume up button does not seem to react and so the unlocking does not work. Also one user suggested using the reset button after pressing the volume up button for the unlock; that also does not work for me
Do u have any other suggestions to unlock ?;
Click to expand...
Click to collapse
I never ran into this problem. So short answer - No.
Can you point me to that other discussion?
What do you get if you run fastboot oem lks
fastboot oem unlock is supported on this device. You could give that command a try and see if there is a difference.
Not sure what you have tried.
I would start with "Factory Reset" in stock recovery. Skip through the initial setup and try again.
Note: Developer option menu has a toggle at the top, make sure it is turned On.
Sent from my BNTV450 using XDA Labs
Volume up button not recognised while fastboot unlock
Hi
Here is the discussion thread that I was referring to where people are stuck with unresponsive volume up button for fastboot unlock
https://forum.xda-developers.com/nook-7/help/nook-rootable-t3510289
I didn't do the factory reset. So maybe I will do that and see if it works.
unlock not working
Hi
Just to further update you on your reply; i did a factory reset and tried to unlock the bootloader but i get to the same problem; the volume button does not respond; so stuck with the message 'press the volume up button to unlock the bootloader'
I did the fastboot oem lks and that commands executes well and it gives me a OK output.
Cheers & New year greetings!
Any update on the unlock issue
Hi
Is there any update on the unlock issue i reported some time back? My last update on this was executing the command => 'I did the fastboot oem lks and that commands executes well and it gives me OK output.'
not sure if my last update was interpreted in the right way; it does nothing when i type fastboot oem lks except saying it is OK (which i suppose is the expected output of fastboot oem lks). So i do not know how to get around the volume keys not being recognised to go further in unlocking
I still can not use the volume keys for the unlock as it does not seem to react. just stuck a bit on this
@arrmusic I guessed it it looked more like this.
Code:
fastboot oem lks
...
(bootloader) lks = 1
OKAY [ 0.000s]
finished. total time: 0.000s
lks = 0 would be unlocked.
I am looking for a way to un-brick these. I think that may be the best way to correct the button problem also.
What os version are you running? (BNTV450-vx.x.x-20xxxxx)
What do you get when you run fastboot flashing get_unlock_ability ?
Tested a few things tonight.
I was NOT able to re-lock the bootloader on either of my rooted devices.(BNTV450-v2.0.4)
Found some more inconsistencies with power and volume key boot combinations. (Among other things.)
"FAILED (remote: not support on security)" apparently is not just for unlocked devices.
Sent from my BNTV450 using XDA Labs
not able to unlock yet
Hi
Many thanks for your reply.
I seem to have the software version v1.0.2;
I tried to find by googling v2.0.4 but i am not able to find that security update anywhere to download; do you have the v2.0.4 file? can i have it somehow?
I ran the commands u had mentioned in your previous reply.
fastboot flashing get_unlock_ability
...
(bootloader) unlock_ability = 16777216
OKAY [ 0.012s]
finished. total time: 0.012s
fastboot oem lks
...
(bootloader) lks = 1
OKAY [ 0.004s]
finished. total time: 0.008s
What is the origin of the boot.img?
What is the origin of the boot.img? I'd rather not just flash something without knowing where its come from.
74178951237895321 said:
What is the origin of the boot.img? I'd rather not just flash something without knowing where its come from.
Click to expand...
Click to collapse
v2.0.3 boot came from a supposed "N" rom for this device and was the first boot image I was able to make bootable. It was still API 23 "M" by the way.
I would have to find and unpack the original file to see what I edited to make it bootable.
All others are "dd" copies from my own device(s).
I am working on updating the OP and the "Quick Guide"
Boot Images
Download Magisk 15.3 patched v2.0.5 (Preferred and current boot image.)
Sent from my ford using XDA Labs
Scatter file for Mediatek MT8163, opening the tablet
Can you post the scatter file for the Mediatek MT8163?
I've been trying to make my own image dumps for the Nook 7, but have run into an issue where the device won't stay in a readable mode for SP Flash Tools long enough while the battery is still connected. So, the solution for most phones is to disconnect the battery and have it powered over USB only so that it won't go past the preloader and into the charging mode.
But I can't get the darned thing open! My phone has a similar style housing and I had to use a suction cup on the glass while prying at the edges to gain access. But for the Nook 7 its just not working.
Edit: This started while trying to soft load TWRP to make the image dumps. When I do
Code:
fastboot boot twrp.img
It tells me that the kernel address lies outside of memory. Its possible to supply an address to load it at with the fastboot command which you are supposed to learn from the scatter file. I found what I thought was a valid MT8163 scatter file but using the address found within did not fix the issue.
I forgot you mentioned that you didn't pull the original image from your device yourself. I've been trying to root this without relying on images from others. Your latest guide to pulling and modifying your own boot.img is a decent enough middle ground for me to use. Thanks.
@74178951237895321
Sent from my Nexus 7 (2013) using XDA Labs
I was able to get a successful root by following the steps in this thread in combination with those mentioned in this one. ipdev, just to satisfy my curiosity, where did you find this "N rom" image?
ipdev said:
So we hit a snag using Magisk 15.4+ to patch a stock boot image on this device.
Click to expand...
Click to collapse
So, I was dumb and went through with updating Magisk without checking this thread first, and now my tablet's stuck in a bootloop that I can't seem to get out of. @ipdev, do you have any ideas on how this happened/how to get out of it? The tablet can't get past the "Orange state your device has been unlocked etc. etc." screen, and I can't get it to boot into recovery either (using Power+Volume Down, is the combination something else on this tablet?). fastboot won't discover it either, probably because it reboots within seconds and never gets to a point where it could be recognized. I'm thinking of letting it bleed out until its battery dies (unfortunately, the battery is soldered and glued in, so I can't just disconnect it), and checking on it in the morning to see if it will be cooperative enough to let me flash the modified Magisk image.
@saagarjha
I have a few in the same condition. As you noticed, the battery is soldered in so the best you can do is disconnect the screen. (Connector to the right of battery.)
One of these days, I was going to try sp flashtools to see if I could recover one of mine. (I'm not sure if it works with these.)
Sent from my Nexus 5 using XDA Labs
I let the tablet run out of battery and then plugged it back in again and it immediately got stuck in the same bootloop, so it looks like it's actually bricked rather than just pretending. I think SP Flash Tools is the way to go at this point; we'd have to find a functioning preloader driver and scatter file to do that, however. It might be possible to simulate disconnecting the battery by shorting the battery's leads, but I'm not sure if this would work (or is even safe to do).
I was having trouble with unlocking the boot loader on my v1 launch version of this Nook. Recently I dropped it and got a new one via the replacement plan - this one was marked 'v2', came with a 2.x firmware that I wasn't able to even get on my launch Nook 7.
Anyway, this one unlocked without any problems. Thought this might be helpful to anybody having trouble unlocking the bootloader. Consider the revision of the Nook you have. Maybe the solution here is flashing the v2 firmwares to the v1? Hard to say.
unable to unlock
So I did "adb reboot bootloader" and the tablet rebooted and says "=> FASTBOOT mode..." on the screen.
I then did "fastboot flashing unlock" on the computer. Nothing happened on the device and my computer says "< waiting for device >". Could anyone please let me know what I did wrong? Thank you very much.
I have a Pixel 2 which overnight stopped working - my guess is that it rebooted due to an automated software update.
I now only get the page with the robot on it's back.
Options in green on this page are Barcodes, Power Off, and Start.
After reading a lot online I've tried all the usual key press combinations to no avail.
I've also downloaded ADB and FASTBOOT to my Mac.
ADB doesn't see the phone when plugged in via USB (ie. ADB DEVICES doesn't return anything)
FASTBOOT DEVICES does, however, show the serial number as listed on the page with the robot on it's back (and the -l option adds "usb:" plus an 8 digit number and the letter "X"
FASTBOOT REBOOT restarts the phone and brings me back to the robot on it's back page.
Other information on the Robot on it's back page include -
Product Revision: walleye MP1
Boot-slot: b
Console: DISABLED
Secure Boot: yes (PRODUCTION)
Device State: locked
Advice online suggests I need to unlock the phone, so I've tried FASTBOOT FLASHING UNLOCK, and FASTBOOT OEM UNLOCK but neither work.
When I try these I get "FAILED (remote: Flashing Unlock is not allowed)"
An article on Android Police suggests this may have been a bug on the Pixel 2 originally and that it's now resolved?
Unfortunately, my cat 22 situation seems to be that I need to do a factory reset, but the steps I've found as to how to do a factory reset all lead back to the Robot on it's back page, so I can't see how to move forward to with recovering my phone?
Can anyone help please?
Really frustrated that my new phone can put itself into this state without me having done anything and that it's seemingly impossible to recover from this state now that it's in it.
At very least I'd like to wipe all data from the phone so I can send it off for repair.
Thanks in advance.
Unfortunately, I can't describe a situation to get around this because the bootloader is still locked -- you'll probably want to unlock the bootloader and then leave it unlocked permanently if flashing the images using this method on a regular basis... I have personal notes that I've written for two scenarios. (1) is to gain root from stock and directions (2) is to flash the latest Android image and retain the data... Perhaps try the bottom block of steps (re-installing the factory image) --- but also unlock the bootloader from the top block of steps:
=======================
Code:
ROOT FROM STOCK
0.5 - Download the following
Magisk-v16.7-1674.zip -- https://transfer.sh/YVFdi/Magisk-v16.7-1674-.zip
twrp-pixel2-installer-walleye-3.2.3-0.zip -- https://dl.twrp.me/walleye/
twrp-3.2.3-0-walleye.img -- https://dl.twrp.me/walleye/
1.0 - On phone: Settings > System > About Phone > tap on the 'build number' seven times.
2.0 - The Developer Options will now be visible in the main settings page. Enter it and turn on USB debugging and OEM unlocking
3.0 - Reboot into 'bootloader' and unlock bootloader (this will factory reset phone)
# adb reboot bootloader
# fastboot oem unlock
4.0 - Download 'twrp-3.2.3-0-walleye.img' to Desktop. Rename the File to 'pixeltwrp.img' (Not necessary to rename -- just did; https://dl.twrp.me/walleye/)
5.0 - Now boot your phone in bootloader mode. Turn off phone and Hold the Volume Down + Power, then release Power button or...
# adb reboot bootloader
6.0 - Run the following command
# fastboot boot ~/Desktop/pixeltwrp.img
7.0 - Phone will boot in the TWRP mode. Push 'twrp-pixel2-installer-walleye-3.2.3-0.zip' and 'Magisk-v16.7-1674.zip' to the phone's /data/ directory
# adb push ~/Downloads/twrp-pixel2-installer-walleye-3.2.3-0.zip /data/
# adb push ~/Downloads/Magisk-v16.7-1674.zip /data/
8.0 - Tap on 'Install' and flash 'twrp-pixel2-installer-walleye-3.2.3-0.zip' and 'Magisk-v16.7-1674.zip' files
9.0 - Reboot Phone
10.0 - Install busybox on /system/bin
UPDATE IMAGE TO LATEST WITHOUT WIPING PHONE
0.5 - Download the following
Magisk-v16.7-1674.zip -- https://transfer.sh/YVFdi/Magisk-v16.7-1674-.zip
twrp-pixel2-installer-walleye-3.2.3-0.zip -- https://dl.twrp.me/walleye/
twrp-3.2.3-0-walleye.img -- https://dl.twrp.me/walleye/
1.0 - Remove "PIN UNLOCK" for security reasons
2.0 - Download the latest factory image from https://developers.google.com/android/images#walleye
3.0 - Unzip the factory image's ZIP and remove '-w' from "flash-all.sh"
4.0 - Reboot to bootloader
# adb reboot bootloader
5.0 - Flash image
# ./flash-all.sh
6.0 - Re-install magisk (https://dl.twrp.me/walleye/)
# adb reboot bootloader
# fastboot boot ~/Desktop/pixeltwrp.img
7.0 - Tap on 'Install' and flash 'twrp-pixel2-installer-walleye-3.2.3-0.zip' and 'Magisk-v16.7-1674.zip' files (located on /data/) - If installing a new magisk version, run the magisk uninstaller first '/data/Magisk-uninstaller-20180719.zip'
7.1 - Wipe Dalvik/Cache and reboot
7.2 - Install MagiskManager and TWRP Manager if not installed
7.3 - Go to bootloader and flash kernel 'flashkernel-wahoo-v3.01.zip'
8.0 - Reboot phone
9.0 - Install busybox on /system/bin
10.0 - Re-add security unlock
=======================
...If these options don't work then the last thing I can think is to attempt to boot into the 'pixeltwrp.img' and switch the the primary slot (from Slot B to Slot A) and try to reboot.
Thanks @armordillo for your reply. I'm not planning on doing anything like this regularly - just trying to get my phone to boot or get the files off it so I can send it for repair.
Sadly I can't execute step 1 in either of your proposed processes - I literally can't get past the screen with the upturned robot
I can't turn on USB debugging, and I can't run OEM UNLOCK.
I'm completely stuck.
Can you get into the stock recovery?
On the screen with Andy in his back use the volume keys to scroll till you see Recovery Mode (or something similar) then hit the power button. At this point you should get another dead Andy. Press and hold Power button and then press the Volume UP button once. That should take you to the stock recovery. There will be a bunch of text with options for clearing cache adb sideload and other things.
Sent from my Pixel 2 using Tapatalk
Sadly not.
That option (Recovery mode) is in red and so are 'restart bootloader' and 'download mode' - when I choose any of these by pressing the power button to select, the phone screen goes black for 2 seconds and then the robot on his back image comes back on.
The power button and up volume combination takes me back to the same screen also.
I'm not sure it works on the pixel 2 but you can try changing to boot with slot a using the command:
fastboot --set-active=a
domonicwhite said:
Sadly not.
That option (Recovery mode) is in red and so are 'restart bootloader' and 'download mode' - when I choose any of these by pressing the power button to select, the phone screen goes black for 2 seconds and then the robot on his back image comes back on.
The power button and up volume combination takes me back to the same screen also.
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Click to collapse
Sent from my Pixel 2 using Tapatalk
It says I can't do that because it's locked.
PiousInquisitor said:
I'm not sure it works on the pixel 2 but you can try changing to boot with slot a using the command:
fastboot --set-active=a
Sent from my Pixel 2 using Tapatalk
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Click to collapse
You can try booting twrp. But if you had some form of security (pin/password) you probably won't be able to decrypt and access your files.
You probably won't even be able to boot twrp. It's worth a shot though.
fastboot boot twrp<version>.img
Sent from my Pixel 2 using Tapatalk
Thanks!
I don't mind not accessing my files - I'd be happy if I could just delete them.
I'm non technical and not familiar with TWRP but I'll do some searching and see what I can learn.
Based on an earlier post I'm guessing I need to download TWRP first? Or is that a part of FASTBOOT?
When you say version.img - I'm assuming that's also something I need to download?
Sorry for the newb questions (I literally just want my phone back)
Thanks again.
PiousInquisitor said:
You can try booting twrp. But if you had some form of security (pin/password) you probably won't be able to decrypt and access your files.
You probably won't even be able to boot twrp. It's worth a shot though.
fastboot boot twrp<version>.img
Sent from my Pixel 2 using Tapatalk
Click to expand...
Click to collapse
domonicwhite said:
Thanks!
Based on an earlier post I'm guessing I need to download TWRP first? Or is that a part of FASTBOOT?
When you say version.img - I'm assuming that's also something I need to download?
Click to expand...
Click to collapse
Yes, you'll need to download TWRP from https://dl.twrp.me/walleye/twrp-pixel2-installer-walleye-3.2.3-0.zip.html
To help clarify what PiousInquisitor was saying about the version.img is that you'd have to type in the version of TWRP, that I've linked to, in that particular command.
Thank you! Does it matter that I'm using a Mac / OSX?
SargeStryker said:
Yes, you'll need to download TWRP from https://dl.twrp.me/walleye/twrp-pixel2-installer-walleye-3.2.3-0.zip.html
To help clarify what PiousInquisitor was saying about the version.img is that you'd have to type in the version of TWRP, that I've linked to, in that particular command.
Click to expand...
Click to collapse
domonicwhite said:
Thank you! Does it matter that I'm using a Mac / OSX?
Click to expand...
Click to collapse
I'm pretty sure that it doesn't matter.
What they're describing, @domonicwhite , is my steps 4-6 in the first block. Skip to that and see if you can perform it. You will need to have adb/fastboot installed on your MacBook.
Sadly it won't let me do this in the locked state (assuming I did everything correctly).
Any further suggestions?
--
Last login: Tue Aug 21 09:45:09 on ttys001
Domonics-MacBook-Pro:~ domonicwhite$ adb reboot bootloader
* daemon not running; starting now at tcp:5037
* daemon started successfully
error: no devices/emulators found
Domonics-MacBook-Pro:~ domonicwhite$ adb reboot
error: no devices/emulators found
Domonics-MacBook-Pro:~ domonicwhite$ fastboot reboot
Rebooting
Finished. Total time: 0.001s
Domonics-MacBook-Pro:~ domonicwhite$ fastboot reboot bootloader
rebooting into bootloader OKAY [ 0.000s]
Finished. Total time: 0.000s
Domonics-MacBook-Pro:~ domonicwhite$ fastboot boot /Users/domonicwhite/Desktop/pixeltwrp.img.img
Downloading 'boot.img' OKAY [ 0.814s]
booting FAILED (remote: Operation is not allowed in Lock State)
Finished. Total time: 0.832s
--
PiousInquisitor said:
You can try booting twrp. But if you had some form of security (pin/password) you probably won't be able to decrypt and access your files.
You probably won't even be able to boot twrp. It's worth a shot though.
fastboot boot twrp<version>.img
Sent from my Pixel 2 using Tapatalk
Click to expand...
Click to collapse
Sadly it won't let me do this in the locked state (assuming I did everything correctly).
Any further suggestions?
--
Last login: Tue Aug 21 09:45:09 on ttys001
Domonics-MacBook-Pro:~ domonicwhite$ adb reboot bootloader
* daemon not running; starting now at tcp:5037
* daemon started successfully
error: no devices/emulators found
Domonics-MacBook-Pro:~ domonicwhite$ adb reboot
error: no devices/emulators found
Domonics-MacBook-Pro:~ domonicwhite$ fastboot reboot
Rebooting
Finished. Total time: 0.001s
Domonics-MacBook-Pro:~ domonicwhite$ fastboot reboot bootloader
rebooting into bootloader OKAY [ 0.000s]
Finished. Total time: 0.000s
Domonics-MacBook-Pro:~ domonicwhite$ fastboot boot /Users/domonicwhite/Desktop/pixeltwrp.img.img
Downloading 'boot.img' OKAY [ 0.814s]
booting FAILED (remote: Operation is not allowed in Lock State)
Finished. Total time: 0.832s
--
PiousInquisitor said:
You can try booting twrp. But if you had some form of security (pin/password) you probably won't be able to decrypt and access your files.
You probably won't even be able to boot twrp. It's worth a shot though.
fastboot boot twrp<version>.img
Sent from my Pixel 2 using Tapatalk
Click to expand...
Click to collapse
armordillo said:
What they're describing, @domonicwhite , is my steps 4-6 in the first block. Skip to that and see if you can perform it. You will need to have adb/fastboot installed on your MacBook.
Click to expand...
Click to collapse
Computer says no
It won't let me do this in the locked state -
Domonics-MacBook-Pro:~ domonicwhite$ fastboot boot /Users/domonicwhite/Desktop/pixeltwrp.img.img
Downloading 'boot.img' OKAY [ 0.814s]
booting FAILED (remote: Operation is not allowed in Lock State)
Finished. Total time: 0.832s
armordillo said:
What they're describing, @domonicwhite , is my steps 4-6 in the first block. Skip to that and see if you can perform it. You will need to have adb/fastboot installed on your MacBook.
Click to expand...
Click to collapse
And doing one or both of these don't work from the bootloader either?
# fastboot oem unlock
# fastboot flashing unlock
In red? The color doesn't matter you can still choose recovery. Then hold power for a second and press up. You can the ADB sideload an OTA zip.
I'm pretty sure mine is red too, but it still let's me choose it
Did you accidently reset the bootloader lock after tinkering with your phone? that can cause this, my kid did it to my other phone after i had it messed with. so it was erroring out. nothing you can do but call your company see if you can exchange it for *faulty udate*
since your phone is *locked* just say you tried updating the software, and it reset the phoen to this. phones still locked so you have a shot at exchange..
they exchanged my *faulty update* for a new one. actually recieved it 5 days after making the request. before i had even sent the non working one back.
Sorry I didn't read where you said that it leads back to fastboot. I had to do an RMA due to this because I didn't unlock the bootloader. I then received a phone that cannot be bootloader unlocked (apparently all refurb phones can't). Horrible situation really and probably going to result in me never buying another pixel.