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[HELP] Nexus S can't boot recovery

Hi all,
Been given a Nexus S i9023 by my brother who has been "tampering" with it and now it seems a bit messed up.
When booting up - it gets stuck on the "Google" screen with a padlock on it... I can get into fastboot and I can flash recovery but when I attempt to load any recovery - I get that same Google screen with the padlock! I've downloaded a stock rom and even flashed system etc via fastboot but that still gets me nowhere past the damn padlock!!
I've tried to "fastboot boot recovery.img" and I still get the Google screen with the padlock but it says "Fastboot status - OK" on the bottom left.
I've searched and searched but everyone just seems to give tips on how to flash recovery. I know how to flash recovery; it just seem to be going into it though! Could the internal memory be screwed?
Thanks for any advice!

Sounds strange for sure. You try from within the OS? Enable USB debugging and adb reboot recovery.
Doubt it will work but its worth a shot

albundy2010 said:
Sounds strange for sure. You try from within the OS? Enable USB debugging and adb reboot recovery.
Doubt it will work but its worth a shot
Click to expand...
Click to collapse
The phone stops at Google with the padlock on boot! Can't even get into the OS. Going to try to unbrick it and Odin but left my ubuntu laptop at my parents and can't be bothered to go get it... couldn't get it to work booting off cd rom. Kept giving me the "SBL Injection Failure Failed to find device" error booting ubuntu on a CD!

You may have a storage issue.
I seen you tried to flash system and boot recovery with fastboot ( which should have booted) but did you try to flash them all and wipe. The command is fastboot -w update file name.
I think Odin is a windows only tool anyways by the way.

albundy2010 said:
You may have a storage issue.
I seen you tried to flash system and boot recovery with fastboot ( which should have booted) but did you try to flash them all and wipe. The command is fastboot -w update file name.
I think Odin is a windows only tool anyways by the way.
Click to expand...
Click to collapse
No idea why I said Odin - I meant the unbrickable recovery thing.
I tried Odin with a Jig last night; got it into download mode and flashed with odin. Got the same result.
fastboot -w also gives the same issue...
If I have a storage issue - is there any way I can tell?

Basically you can tell by the issues you're having. Doing all the proper stuff to flash images etc and still having a booting/working device.
As far as a actual diagnostic tool I don't know of one. But it sure sounds like a hw issue to me.

I have the following problem: since a few weeks I'm unable to enter recovery.
This is what I do:
- shut down my phone
- press the power button while holding the volume up
- than I get a screen where I can choose from 4 options using the volume controls and selecting an option with the power button
- I select 'Recovery' and press the power button
- I get the usual black screen with Google logo and padlock
- but instead of getting into my recovery, I get a black screen with a Droid lying down, the 'chest' opened and some kind of small warning triangle above it..somebody who knows what I have to do??
Thanks in advance

Pironi90 said:
I have the following problem: since a few weeks I'm unable to enter recovery.
This is what I do:
- shut down my phone
- press the power button while holding the volume up
- than I get a screen where I can choose from 4 options using the volume controls and selecting an option with the power button
- I select 'Recovery' and press the power button
- I get the usual black screen with Google logo and padlock
- but instead of getting into my recovery, I get a black screen with a Droid lying down, the 'chest' opened and some kind of small warning triangle above it..somebody who knows what I have to do??
Thanks in advance
Click to expand...
Click to collapse
Reflash your recovery using fastboot.

polobunny said:
Reflash your recovery using fastboot.
Click to expand...
Click to collapse
And where can I find how to do this? I'm a total newbie for this kind of stuff and I found some hits on google (e.g. http://forum.xda-developers.com/showthread.php?t=1757146) but I'm actually a bit scared to damage my phone or something by doind something wrong or applying some method that's actually made for another device or so.. :s

Pironi90 said:
And where can I find how to do this? I'm a total newbie for this kind of stuff and I found some hits on google (e.g. http://forum.xda-developers.com/showthread.php?t=1757146) but I'm actually a bit scared to damage my phone or something by doind something wrong or applying some method that's actually made for another device or so.. :s
Click to expand...
Click to collapse
Flash custom recovery.img part
http://wiki.cyanogenmod.org/wiki/fastboot#Flash_Custom_Recovery.img
You need ADB (and ADB drivers installed, strongly recommend PDANet Android Drivers) and fastboot executable.
Custom recovery I suggest you use Clockworkmod Recovery.
I imagine your phone is already unlocked?

polobunny said:
I imagine your phone is already unlocked?
Click to expand...
Click to collapse
I think so yes, I could access recovery before if that's what you mean by unlocked

Pironi90 said:
I think so yes, I could access recovery before if that's what you mean by unlocked
Click to expand...
Click to collapse
When u boot on the Google screen on the bottom centre does it have a padlock? If so then it is unlocked.

You are entering recovery. Stock recovery
If you want a custom one either flash with fastboot or if you're rooted with a app. Goo manager. Rom manager etc.
Keep it mind that if you're on a stock ROM the custom recovery gets overwritten back to stock when the phone boots up the os
Q

UselessSniper001 said:
When u boot on the Google screen on the bottom centre does it have a padlock? If so then it is unlocked.
Click to expand...
Click to collapse
Then my phone is unlocked yes

polobunny said:
You need ADB (and ADB drivers installed, strongly recommend PDANet Android Drivers) and fastboot executable.
Custom recovery I suggest you use Clockworkmod Recovery.
I imagine your phone is already unlocked?
Click to expand...
Click to collapse
In installed the drivers and I installed the fastboot executable, but what do I have to do next? If I run the fastboot.exe, it just quickly shows a CMD-window and then disappears.
Edit:
I just discovered that, when I'm at the bootloader (I think it's called that way, the screen where you can select recovery), and I choose to reboot, I get the same 'error' as when I try to enter recovery.
Edit:
Alright, I was able to flash a new recovery, using cmd, but now when I try to enter my recovery, the phone gets stuck at a black screen with Google logo and padlock...

I have same problem as wolverine_2k who made the post. My nexus, can't start, I tried reboot and recovery but didn't work. After reboot or recovery I see Google logo, than Nexus screen and that is it. It didn't move to home screen and it stay with lighting screen all the time till I remove the battery. I can't power off it and don't know what to do. I can't transfer data with my PC (it don't recognize the device - only notice that "unknown device" is connected). Please any ideas?
P.S.: My English is not good, if someone answer do it simple please
Thanks!

Root Guide

Found this while trolling through the Chinese forums, none of this is my work, I have translated the instructions as best I can.
Disclaimers; I have not tried this, it may brick the global rom, the custom recovery is likely only in Chinese language.
You need:
Boot Loader unlock code (currently probably not possible to get)
Huawei USB drivers
Recovery image (attached)
Magisk package (attached)
files: https://mega.nz/#!PM0EmYLA!384hZjmJ9ExNc7Q8rSqssHunWSO7AxQ3GA4qet6RX4E
Extract files to a folder, open command prompt and change into this folder.
Unlock bootloader (BL unlock will clear the phone data, please do a backup)
- Obtain an official unlock code
- double-click to open the "Huawei Toolbox.exe"
- click "unlock bootloader "
- enter the unlock code in the pop up window , click OK, and wait for the phone to unlock complete restart.
Flash the third-party recovery
- Turn off the phone and connect the computer. Press and hold the “Volume Down” button and “Power button” until the phone displays the android page and release your finger.
- open command prompt and run:
fastboot flash recovery_ramdisk twrp.img
- after seeing the two OKAY feedback from the command line, the flash is successful.
Enter recovery to flash root image (this step will clear all data of the mobile phone including memory card, please make a backup in advance)
- long press “Volume Up” and “Power” ", until you see the a twrp logo, release the keys and wait to enter recovery mode
- After entering recovery, click the second item “Clear”, click “Format Data Partition” in the lower left corner, slide the slider to enter the clear, wait for the progress bar to complete
- Return to the recovery homepage, click on the last item "Advanced", select the last item "Remove data forced encryption", slide the slider to release, wait for completion
Copy the root package to the phone
- In Command Prompt type or copy the following commands
adb push magisk-installer.zip /sdcard
adb push magisk.apk /sdcard
Install Image
- Whilst still in recovery mode, click the first item to install the magisk-installer.zip package from the sdcard , slide the slider to install, wait for the flash to complete, and restart the phone
- After reboot is complete, click “File Manager”, select the apk file “magisk.apk” just copied from the memory card when install is finished, open the magisk app and click “No, thank you” in the pop-up window
- Return to the command line tool, type the code to execute, and wait for the phone to automatically restart
Fastboot reboot recovery
- after the restart, open "magisk", it should show that the installation is complete, that is, ROOT is achieved.

Anything in that forum on how to manually update phone?

technotika said:
Anything in that forum on how to manually update phone?
Click to expand...
Click to collapse
That is actually what I was looking for
But none, problem is the v20 (china version) seems to get OTA way before us, they all got v143 2 weeks ago.
I did find the menu to do it, but it only supports if the image is stored on an sdcard, and when I click it it says no sdcard found. so its impossible.

Tried same with similar results. One day eh? ?

İ have V20 chinese version. İ want to root but could not find a way. Can you share the chinese forum maybe i can find how to unlock bootloader

greenblueye said:
İ have V20 chinese version. İ want to root but could not find a way. Can you share the chinese forum maybe i can find how to unlock bootloader
Click to expand...
Click to collapse
If you read what I wrote in the first post you would see you cannot root without a bootloader unlock code.

Tested! Work bootloader code on Russia services (Cost 20USD)

belam00r said:
Tested! Work bootloader code on Russia services (Cost 20USD)
Click to expand...
Click to collapse
Nice! Did unlocking bootloader factory reset your device?

Yes of course. All new Huawei and Honor do a reset after unlocking

i get bootloader unlock code from funkiehuwai for 20$
any one tried this instructions and have success?
I just wonder comments below will work?
*adb push magisk-installer.zip /sdcard
*adb push magisk.apk /sdcard
because there is no sd card support for view20?
when i opened huawei-toolbox.exe its in chinese and im afraid to continue other instructions

Did anyone use TWRP and which version?
Did the View 20 Boot correctly?
I read in a Forum, that with the view 20 doesn´t boot correctyl with TWRP. The reason should bei the Storage...
Best regards

Unlocked Bootloader
belam00r said:
Tested! Work bootloader code on Russia services (Cost 20USD)
Click to expand...
Click to collapse
Does that mean you rooted you device (with the files from above) or you just unlocked the bootloader?
I was able to unlock my bootloader with a code from funkyhuawei (about 18 €, site seems to be down currently). I did not use the unlock tool above, mainly because its chinese
- Enabled "USB debugging" and "OEM unlock" in developer settings
- Connected phone to PC, opened adb and used "adb reboot bootloader"
- Unlocked via "fastboot oem unlock *16digit code*"
This worked out fine. However, as far as i understand it magisk is installed over twrp (recovery_ramdisk), removing twrp but granting you root. This makes me kind of nervous since twrp has been a nice safety net on several occasions. This is why I stopped after unlocking the bootloader. Maybe someone has more experience on this? Why is there so little interest in rooting this phone?
Regards

root achieved
I don't know if nobody's interested or nobody wants to try rooting this phone. However, I just went ahead and tried it. I used this guide: https://topjohnwu.github.io/Magisk/install.html#emui-9 (posted in https://forum.xda-developers.com/honor-view-20/help/root-t3900266). https://androidhost.ru/search.html is were I got the firmware from (posted in https://forum.xda-developers.com/honor-view-20/how-to/honor-view-20-ota-march-patch-t3909075/page12). I downloaded the 9.0.1.137 firmware, since this corresponds to the one currently installed on my phone.
In summary:
I extracted recovery_ramdis.img from the update.app with the huawei extractor. In order to see this image file, I had to uncheck "verify header checksum" under settings->extract.
I then transferred this file to my phone (download folder), downloaded newest magisk manager and installed it. I then pushed INSTALL next to magisk (which was not installed of course), Install again and then Patch boot image file. Choose your transferred recovery_ramdis.img and go ahead. Transfer patched file (now called patched_boot.img) back to PC.
For the next step, bootloader has to be unlocked already! Turn on "Enable OEM unlock" and "USB debugging" in the developer options and reboot to fastboot. Open ADB as usual and connect cable to phone. Type "fastboot flash recovery_ramdisk *path to patched_boot.img*" and wait for success.
A few things to keep in mind:
-Had a bootloop with the newest version of the viper4android module!
-The root was done without custom recovery, therefore a magisk module leading to a bootloop requires you to factory reset and do everything again if you want root to work (at least i couldn't get it to work again by reflashing orginial recovery_ramdis.img followed by patched_boot.img).
-For rooting to work you have to boot phone to recovery (in this case resulting in a "normal boot"). This means pressing volume up and holding it when booting the phone. For restart you could use an app which lets you boot to recovery automatically.
-While the above my sound annoying, permanently gives you the chance to boot you phone unrooted. This is nice, especially when you have a bootloop due to a magisk module (which I had).
-According to the first link, you could install a custom recovery into the second recovery partition of Huawei/Honor devices (erecovery_ramdis). there is no official twrp available for Honor View 20 at the moment.
-After unlocking my bootloader (see post above) I had "device not verified" in google play store. After rooting, my device is verified again
Regards

garris_bibop said:
I don't know if nobody's interested or nobody wants to try rooting this phone. However, I just went ahead and tried it. I used this guide: https://topjohnwu.github.io/Magisk/install.html#emui-9 (posted in https://forum.xda-developers.com/honor-view-20/help/root-t3900266). https://androidhost.ru/search.html is were I got the firmware from (posted in https://forum.xda-developers.com/honor-view-20/how-to/honor-view-20-ota-march-patch-t3909075/page12). I downloaded the 9.0.1.137 firmware, since this corresponds to the one currently installed on my phone.
In summary:
I extracted recovery_ramdis.img from the update.app with the huawei extractor. In order to see this image file, I had to uncheck "verify header checksum" under settings->extract.
I then transferred this file to my phone (download folder), downloaded newest magisk manager and installed it. I then pushed INSTALL next to magisk (which was not installed of course), Install again and then Patch boot image file. Choose your transferred recovery_ramdis.img and go ahead. Transfer patched file (now called patched_boot.img) back to PC.
For the next step, bootloader has to be unlocked already! Turn on "Enable OEM unlock" and "USB debugging" in the developer options and reboot to fastboot. Open ADB as usual and connect cable to phone. Type "fastboot flash recovery_ramdisk *path to patched_boot.img*" and wait for success.
A few things to keep in mind:
-Had a bootloop with the newest version of the viper4android module!
-The root was done without custom recovery, therefore a magisk module leading to a bootloop requires you to factory reset and do everything again if you want root to work (at least i couldn't get it to work again by reflashing orginial recovery_ramdis.img followed by patched_boot.img).
-For rooting to work you have to boot phone to recovery (in this case resulting in a "normal boot"). This means pressing volume up and holding it when booting the phone. For restart you could use an app which lets you boot to recovery automatically.
-While the above my sound annoying, permanently gives you the chance to boot you phone unrooted. This is nice, especially when you have a bootloop due to a magisk module (which I had).
-According to the first link, you could install a custom recovery into the second recovery partition of Huawei/Honor devices (erecovery_ramdis). there is no official twrp available for Honor View 20 at the moment.
-After unlocking my bootloader (see post above) I had "device not verified" in google play store. After rooting, my device is verified again
Regards
Click to expand...
Click to collapse
Well done good job:good:
İ have chinese version PCT-AL10 9.0.1.144 right now. Do you think i can use the same way? İ wonder from which version to extract recovery_ramdis.img

I have my view20 rooted
Thanks for the instructions.

greenblueye said:
I have my view20 rooted
Thanks for the instructions.
Click to expand...
Click to collapse
You're welcome Be careful with sound improvement modules in Magisk! Had another bootloop with the Zirene module...
Which firmware did you get the recovery_ramdisk from in the end?

garris_bibop said:
You're welcome Be careful with sound improvement modules in Magisk! Had another bootloop with the Zirene module...
Which firmware did you get the recovery_ramdisk from in the end?
Click to expand...
Click to collapse
I get recovery-ramdisk from firmware PCT-AL10 9.0.1.129 . my phone is on version 9.0.1.144 but it worked:good:

After root i can not auto update software. 9.0.1.166 version is seen on ota but after download it says update is unsuccessful. Do you have any suggestion?

I think thats to be expected when rooted. Go for manual update I guess (https://forum.xda-developers.com/honor-view-20/how-to/honor-view-20-ota-march-patch-t3909075/page12). Personally I wouldn't bother with every update unless theres interesting new features and/or security updates. just to be on the safe side I would reflash the original recovery_ramdisk before updating! And backup your data!

NM Card
Hello !
Unless I'm mistaken, the View20 must be able to use nano sd cards (NM Card)

How To Guide Pad 11 (TB-J606F) Unlock! Magisk! RoooooT !!!

Lenovo Tab P11 (2021г.) - Обсуждение - 4PDA
Lenovo Tab P11 (2021г.) - Обсуждение, Планшет, 11"
4pda.to
Translator from Russian: https://www.deepl.com/translator

Basically
1. Enable OEM Unlock in Developers Settings
2. (Your host PC should have LMSA installed) Open command window, and go to where ADB is
3. Turn your tablet off. Press and hold volume down and power buttons to enter bootloader
4. Enter the following in command window
Code:
fastboot flashing unlock
. Answer yes to unlock bootloader
warning: your tablet is wiped during the process!!![/B]
5. Reboot

To root, patch boot with Magisk
You can use LMSA to download matching ROM, and use rescue to update ROM if necessary. You can get needed boot at c:/program data/LMSA/download/romfiles/
Copy boot.img to your phone and use Magisk to patch, and copy patched_boot.img back to host computer.
Turn your tablet off and enter bootloader
Switch to fastbootd
Code:
fastboot reboot fastboot
Flash the patched boot
Code:
fastboot flash boot
Press spacebar once and drag and drop the patched boot onto command window, and press enter
Reboot

does this work with Lenovo Pad Pro 2021 (SD870) ?

Thanks for the guide, I've successfully unlocked the bootloader and rooted with Magisk.
I also installed the unofficial TWRP from here: https://unofficialtwrp.com/twrp-3-4-2-root-lenovo-tb-j606f/
However I didn't flash the provided vbmeta.img and everything still seems to be working fine, including booting into TWRP.
Anyone know if not flashing it may cause issues to appear?
The reason I didn't flash it is because someone else on another thread here said they got stuck in a boot loop after flashing it and that after restoring they decided not to flash it and everything worked fine, which seems to be my experience too, but maybe there are implications I'm not aware of with not flashing it.

I had this issue too, I had to run the command:
Code:
fastboot flashing unlock

aurelienlux said:
Thanks for the guide, I've successfully unlocked the bootloader and rooted with Magisk.
I also installed the unofficial TWRP from here: https://unofficialtwrp.com/twrp-3-4-2-root-lenovo-tb-j606f/
However I didn't flash the provided vbmeta.img and everything still seems to be working fine, including booting into TWRP.
Anyone know if not flashing it may cause issues to appear?
The reason I didn't flash it is because someone else on another thread here said they got stuck in a boot loop after flashing it and that after restoring they decided not to flash it and everything worked fine, which seems to be my experience too, but maybe there are implications I'm not aware of with not flashing it.
Click to expand...
Click to collapse
I flashed vbmeta.img and now I can't boot into system/fastboot/recovery. Do you know how to restore ? I also tried LMSA, device cannot be detected.

cyatsl said:
I flashed vbmeta.img and now I can't boot into system/fastboot/recovery. Do you know how to restore ? I also tried LMSA, device cannot be detected.
Click to expand...
Click to collapse
DO IT ON YOUR OWEN RISK! I HAVE NOT TESTED ON A LENOVO TAB P11 YET!
These are the steps for rooting a Lenovo Tab M8 FHD!
I think essential are the points 19 to 21, to flash the boot.img ONCE AGAIN after vbmeta.img.
It discribes ... this part is key, otherwise you'll bootloop!
Fully charge tablet
Turn tablet on
Skip as much of the initial setup process as possible, however you MUST be connected to the WiFi in order to allow unlocking of your bootloader (Start -> More/Accept -> no wifi/Set-Up Offline -> skip setting current time set -> Choose reporting options / Hit Accept -> Skip Pin -> Skip Lenovo ID -> Lenovo User Experience Program (choose if you want to skip or not) -> Choose navigation etc) Get to the home screen
Swipe down from top of screen and open Settings
Developer Tools (enable dev tools if you don't yet have access) -> Enable USB Debugging
Developer Tools -> Enable OEM Unlocking (again, if you're not on WiFi, it may not allow you to do this)
Connect tablet usb and usb to computer (Click "allow" when the usb debugging popup comes up)
./adb devices (Make sure the computer can see the tablet)
./adb reboot bootloader
./fastboot devices (Make sure the computer can see the tablet)
./fastboot flashing unlock then press volume-up on the device
./fastboot reboot`
On the Lenovo loading splash screen, you should now get the Orange State alert that the device is unlocked. It may take a bit to reboot as you've just wiped all data again and it must do initial setup
Device boots up normally. Now you can do real setup steps if you like, or you can ignore everything like in Step 3 above.
Enable USB Debugging again (Step 4-5)
Grab the boot.img and vbmeta.img from the LMSA TB_8505FS_S300025_201015_BMP update. Copy the boot.img to the tablet, taking note of the location (e.g., ./adb push boot.img /sdcard/)
Install latest version of Magisk Manager (doesn't need to be the Canary version, can be the regular version) and patch the boot image.
Clicked on "Install" on the righthand top in magisk manager
Clicked on "Next" Righthand top.
Selected "Select and Patch a File".
picked the boot.img file I had copied in step 1. Take note of the location of the patched image (magisk_patched.img), and copy it to your PC.
Reboot into bootloader again (./adb reboot bootloader)
Flashed the magisk patched boot.img ./fastboot flash boot path/to/magisk_patched.img
Flash the VB meta with the disable-verification flag ./fastboot --disable-verification flash vbmeta path/to/vbmeta.img
Flashed the magisk patched boot.img AGAIN!!!!!! (this part is key, otherwise you'll bootloop) ./fastboot flash boot path/to/magisk_patched.img
Reboot, you should now be rooted (can confirm in Magisk Manager) ./fastboot reboot

Is it ok/safe to flash this to TB-J606L?
It is the same model but with sim card and 4G.
Sometimes WiFi vs 4G models have the same software and detect differences on startup and sometimes not... Not sure about this model. I would prefer to not (soft)brick it.

Hi there. First time boot-unlocker needing help. I also have the P11 TB-J606F and would like to root it. I believe I need to do this first. I cannot seem to get any response from the tablet when doing this. In "regular tablet" mode I can connect and do ADB-commands, but in this "bootloader" mode I cannot seem to connect. I just get "Waiting for any device"
Could it be a driver issue? In device manager there is an Android device with an exclamation mark? I have no clue how to update this? Automatic doesn't work and I can't seem to find any drivers that work. I am not sure if this indeed is the problem, but you know - help needed, please.

skodkassen said:
Hi there. First time boot-unlocker needing help. I also have the P11 TB-J606F and would like to root it. I believe I need to do this first. I cannot seem to get any response from the tablet when doing this. In "regular tablet" mode I can connect and do ADB-commands, but in this "bootloader" mode I cannot seem to connect. I just get "Waiting for any device"
Could it be a driver issue? In device manager there is an Android device with an exclamation mark? I have no clue how to update this? Automatic doesn't work and I can't seem to find any drivers that work. I am not sure if this indeed is the problem, but you know - help needed, please.
Click to expand...
Click to collapse
Not sure if it helps. I had a similar issue with my Lenovo Tab M8 FHD.
The big issue was to get the android driver for win10, fastboot was not working. I found it under win10 update >> optional updates >>driver updates >> there was a medi.... as installable update. Afterthem fastboot was working fine.

sc00ter98 said:
Not sure if it helps. I had a similar issue with my Lenovo Tab M8 FHD.
The big issue was to get the android driver for win10, fastboot was not working. I found it under win10 update >> optional updates >>driver updates >> there was a medi.... as installable update. Afterthem fastboot was working fine.
Click to expand...
Click to collapse
And thus my problems were solved. It took me a few hours going nowhere and thanks to you everything is now cool

sc00ter98 said:
Not sure if it helps. I had a similar issue with my Lenovo Tab M8 FHD.
The big issue was to get the android driver for win10, fastboot was not working. I found it under win10 update >> optional updates >>driver updates >> there was a medi.... as installable update. Afterthem fastboot was working fine.
Click to expand...
Click to collapse
Solution
Download and install LMSA and use Motorola ADB driver Device Manager
You should see P11 with no driver. Update driver > Let me choose > Android ADB > choose Motorola ADB driver

aurelienlux said:
Thanks for the guide, I've successfully unlocked the bootloader and rooted with Magisk.
I also installed the unofficial TWRP from here: https://unofficialtwrp.com/twrp-3-4-2-root-lenovo-tb-j606f/
However I didn't flash the provided vbmeta.img and everything still seems to be working fine, including booting into TWRP.
Anyone know if not flashing it may cause issues to appear?
The reason I didn't flash it is because someone else on another thread here said they got stuck in a boot loop after flashing it and that after restoring they decided not to flash it and everything worked fine, which seems to be my experience too, but maybe there are implications I'm not aware of with not flashing it.
Click to expand...
Click to collapse
Be aware: The link above is not the right TWRP for the P11 Pro. I lost two days an bricked my tablet to find out that. The TWRP for P11 Pro is at https://unofficialtwrp.com/twrp-3-4-2-root-lenovo-tb-j706f/

37_ said:
does this work with Lenovo Pad Pro 2021 (SD870) ?
Click to expand...
Click to collapse
Did you try it ? I think this method can work on Pad Pro 2021 SD870

mingkee said:
Basically
1. Enable OEM Unlock in Developers Settings
2. (Your host PC should have LMSA installed) Open command window, and go to where ADB is
3. Turn your tablet off. Press and hold volume down and power buttons to enter bootloader
4. Enter the following in command window
Code:
fastboot flashing unlock
. Answer yes to unlock bootloader
warning: your tablet is wiped during the process!!![/B]
5. Reboot
Click to expand...
Click to collapse
does work with me . it repeat the same error:
C:ladb>adb reboot bootloader
error: device '(null)' not found

Two questions:
1. Did anyone lose their Widevine level when unlocking, installing Magisk and/or rooting? I currently have L1 and would hate to lose that (to L3).
2. Is it possible to use the TWRP version for the TB-J706F for the TB-J716F as well? Basically, they are very similar devices, but the screen (90 Hz OLED) and processor (Snapdragon 870 instead of Snapdragon 730G) are different, but I don't know what is relevant for TWRP. Otherwise, could I also root without TWRP?
Thanks in advance!

HANN1860BAL said:
Two questions:
1. Did anyone lose their Widevine level when unlocking, installing Magisk and/or rooting? I currently have L1 and would hate to lose that (to L3).
2. Is it possible to use the TWRP version for the TB-J706F for the TB-J716F as well? Basically, they are very similar devices, but the screen (90 Hz OLED) and processor (Snapdragon 870 instead of Snapdragon 730G) are different, but I don't know what is relevant for TWRP. Otherwise, could I also root without TWRP?
Thanks in advance!
Click to expand...
Click to collapse
1. Yes you will lose L1 when unlock bootloader
2. No , TWRP with very different hardware so don't hope so much .
I see there is no reason to root TB-J716F now, current firmware is stable and smooth

luizkun said:
1. Yes you will lose L1 when unlock bootloader
2. No , TWRP with very different hardware so don't hope so much .
I see there is no reason to root TB-J716F now, current firmware is stable and smooth
Click to expand...
Click to collapse
Thanks for the fast reply!
Is it possible to lock bootloader after rooting again and gaining L1 back with keeping device rooted?
That's true, but I want to use some rooted apps, like Titanium Backup and AdAway ;-)

HANN1860BAL said:
Thanks for the fast reply!
Is it possible to lock bootloader after rooting again and gaining L1 back with keeping device rooted?
That's true, but I want to use some rooted apps, like Titanium Backup and AdAway ;-)
Click to expand...
Click to collapse
you can root after unlock bootloade by patching boot.img from stock rom (by magisk ) and install magisk without TWRP

[Guide] TWRP and ROOT for A20e (A202f) [Updated]

My way of installing TWRP and ROOT on A20e (only tested on a202f).
Everything is working both on TWRP and MAGISK.
Versions:
-Magisk (v26.1)
-MagiskManager (v26.1)
-TWRP (3.6.1_9.0)
_________________________________________________
Download attached files:
-TWRP and ROOT(magisk) Odin is included!
_________________________________________________
#Factory reset is recommended!
#Make sure BOOTLOADER is unlocked!
#If you don't need MAGISK stop at step 6 and reboot to system
[TWRP Installation]
1. Extract required files, open ODIN (as Administrator) click on the "AP" button and choose TWRP-3.6.1_9.0.tar file.
2. In the "Options" menu untick "Auto-Reboot" .
3. On your phone boot into the "Download Mode" then in ODIN you can press the START button. (make sure you are connected to PC)
4. If everything is fine there should be green "PASS!" text in ODIN.
[ If your flashing failed make sure the bootloader is unlocked and check if cable is properly connected ]
[Don't let the phone boot into system because it will replace TWRP with stock recovery.img]
6. Boot into TWRP and FORMAT DATA (Wipe/Format Data) to remove encryption.
# If you don't need MAGISK you can reboot to system. Otherwise continue reading the guide.
[MAGISK Installation]
7. From TWRP reboot into RECOVERY again.
8. Connect your phone to PC or if you moved Magisk-v26.1.zip and Magisk-v26.1.apk to SD card then use SD card.
9. Flash the Magisk-v26.1.zip file and reboot to system.
10. When you boot into system install the Magisk apk.
11. Open it and finish the installation process.
12. Reboot
ENJOY!

[UPDATE]
-Updated versions of both TWRP and MAGISK
# TWRP 3.5.2_9-0 --> TWRP 3.6.1_9-0
# Magisk v23 --> Magisk v24.3
-Remodifed VBMETA
For ANY help contact me on Telegram: https://t.me/SerbianGeek

does encryp work on this ? dont need to backup just hide data part if fone is stole

This one flashes and boots the first time, but after a reboot there is the infamous error "only official released binaries are allowed to be flashed"

/dev/null/ said:
This one flashes and boots the first time, but after a reboot there is the infamous error "only official released binaries are allowed to be flashed"
Click to expand...
Click to collapse
No problems on my end, pal.

SerbianGeekster said:
No problems on my end, pal.
Click to expand...
Click to collapse
this phone is really a PITA. every time i try to do something it's 1 step forward and 2 steps back. never suffered so much. i flashed it like 20 times. all i want is a working twrp on stock rom and pass safetynet

/dev/null/ said:
This one flashes and boots the first time, but after a reboot there is the infamous error "only official released binaries are allowed to be flashed"
Click to expand...
Click to collapse
to bypass this error:
1. connect to wifi
2. change the date to 2 august 2019
3. boot into download mode
4. flash twrp

Thank you! It worked! No problems got me.
I kinda feel like idiot that I couldn't install it with that ease before

OH **** IT WORKED !!!
I've been at this for hours, thank you so much !!!

Hello,
I have a Samsung A20e running with the a202fxxu4cvk1 firmware (a11 version). I would like to install twrp and then to root it. I tried several tutorials (Odin, OEM unblocked, USB debugging, time change) but twrp installation fails with message 'custom recovery blocked by frp'.
Can anyone help me?

I duckduckgoed, and found this XDA thread, where the second post says the following :
Nemirtingas said:
FRP: https://www.samsung.com/us/support/frp/
FRP Just locks your phone if you alter the boot or recovery image and you had a google account registered. To unlock it you have to wipe data (factory reset) and reflash stock boot.img and recovery.img before using it again. If your cousin wants to flash my ROM (lineageos-13.0) he'd better not, its not stable and he will encouter random reboots and codecs bugs. The best thing to do is to remove FRP from his phone and flash Magisk (a root manager like SuperSU) and debloat it.
For more information, find the Grandprimevelte group on Telegram.
Click to expand...
Click to collapse
The rest of the posts mention the need for a modified boot.img, else your phone would brick after adding a Google account, but I don't know about that... I have MicroG on mine with a Google account and no problems.
Anyway, frp seems to be a related to having a Google account on your phone.

fjunk said:
Hello,
I have a Samsung A20e running with the a202fxxu4cvk1 firmware (a11 version) /.../ Custom recovery blocked by frp'.
Can anyone help me?
Click to expand...
Click to collapse
Hello..I was wrong. My issue is not related to frp but OEM. OEM is unlocked according to developper menu but is not effective. Not able to upload any custom rom or bootloader.
I read that there was issue (use of a volume up button in download mode).
Any idea?

fjunk said:
Hello..I was wrong. My issue is not related to frp but OEM. OEM is unlocked according to developper menu but is not effective. Not able to upload any custom rom or bootloader.
I read that there was issue (use of a volume up button in download mode).
Any idea?
Click to expand...
Click to collapse
Indeed, my issue is that in download mode I can only do a volume down button and power button to reboot in system mode. No option to unlock bootloader.

I think you only need to do that once, afterwards, download mode doesn't warn you.
What error message do you get exactly when trying to flash TWRP, at what point, and what gives it (phone, odin) ?

lPolarisl said:
I think you only need to do that once, afterwards, download mode doesn't warn you.
What error message do you get exactly when trying to flash TWRP, at what point, and what gives it (phone, od
Click to expand...
Click to collapse
Many thanks for your update. Attached are pictures of the mobile and the Odin result. The error is an OEM issue (red text on the top of the mobile screen). In other forums, I can see that the download mode has an option to unlock OEM bootloader. I can't see it on my phone.

Putting the camera so that it covers the error message, what an amazing idea xD
I have never encountered this error, so let's start from the beginning.
Have you enabled the developer options, and activated "allow USB debugging" on the phone ? Also, if there is an option "allow OEM unlock", activate that as well (not all Samsung phones have it).
Have you installed the proper ADB and Samsung drivers ? Which version of Odin are you using ?

lPolarisl said:
Putting the camera so that it covers the error message, what an amazing idea xD
I have never encountered this error, so let's start from the beginning.
Have you enabled the developer options, and activated "allow USB debugging" on the phone ? Also, if there is an option "allow OEM unlock", activate that as well (not all Samsung phones have it).
Have you installed the proper ADB and Samsung drivers ? Which version of Odin are you using ?
Click to expand...
Click to collapse
Thanks for your reply.
That's sure that it doesn't really help to hide the error message. Usb debugging is enabled (I am able to run adb commands) and OEM is unlocked on the preference setting. I did the test with Odin 3.13 but same results with newer version. I installed an A11 firmware (a202fxxu4cvk1).
Don't t know how to go ahead. It seems that I don't have the possibility to unlock OEM in the download mode interface....

Wait, what is that about the firmware ? What did you flash, how and why ?
also, try a patched version of Odin from this post (I have 3.13.1_3B)

lPolarisl said:
Wait, what is that about the firmware ? What did you flash, how and why ?
also, try a patched version of Odin from this post (I have 3.13.1_3B)
Click to expand...
Click to collapse
I bought a refurbished mobile phone (blackmarket). It came with a 9.0 version. I tried to update to a custom rom without success so I installed the latest 'official' version
Download Samsung Galaxy A20e SM-A202F XEF France A202FXXU4CVK1 firmware
Fast download latest Samsung Galaxy A20e firmware SM-A202F from France with A202FXXU4CVK1 and Android version 11
www.sammobile.com
I uploaded this version using Odin. I also tried the patched Odin version. I read that the patched version only works with a10 version.

Huh...
I have no idea how that behaves, but I hardly see why it would cause a problem.
What else could you try... Restore factory settings maybe ?
Pressing volume up when starting in download mode ? (Note, this supposedly relocks the bootloader if it has been unlocked, if that happens and your phone isn't 100% on stock, it will brick.)

How To Guide Rooting the Google Pixel 6a

Rooting the Pixel 6a is just about as easy as any other factory unlocked pixel, but because so many people have had issues with unlocking their bootloaders, I figured I'd post my exact personal steps I took when a Pixel 6a came into my tech shop to be rooted, and I discovered the current bug with Rooting
What You'll Need:
- June 2022 Firmware OTA Update Installed at least: Do this on device. Do Not download the OTA update from google's firmware website.
- ADB/Fastboot/Google Drivers for Windows: I use this to install- ADB 15sec Installer
- Magisk Manager APK: Github - Magisk Github Releases
- Firmware Matching Currently Installed: Google FW page - Google Official Firmware Downloads - you need this for the boot.img file
- A Windows Computer
- A USB-C cable to connect to your phone to the computer
OEM Unlock Bug
With early units sold by Google, they're shipping with a bug where OEM Unlock stays grayed out. Here's the only way I got around this issue
1.) Log out of any Google Account on the device
2.) Connect to Wifi, check for updates without your sim card in the device. There is a bug where it will potentially download the update for your carrier sim
3.) At minimum, you should get the June 2022 security patch update. Run the update and remember which update it is for when you download the firmware to get boot.img
4.) When the update is finished, Factory Reset your device either from settings or Android recovery
5.) Go through Android setup without sim card in, and don't connect to wifi, finish setup without logging into a google account or anything
6.) When setup is done, connect to wifi and put your sim back in.
7.) Pay attention in your notifications for "Preparing your Device" notification.
8.) When that notification pops up, enable Developer options (tap build number a bunch of times)
9.) OEM Unlock should be possible to enable now. Also enable USB Debugging
Pre-Root Setup
1.) Install Magisk Manager from Github
2.) Use 7zip (or any other ZIP opening program) to extract the boot.img from your firmware download from google
-- the boot.img is inside another zip file that's in the download from google. very easy to get
3.) Put the Boot.img on your phones internal storage
4.) Open Magisk Manager, and select your Boot.img from internal storage. Patch the boot.img to make it a rooted boot.img
5.) With your phone connected to the computer, move the magisk_patched.img from sdcard/downloads to your computer
6.) If USB debugging is properly enabled, now you can open CMD and reboot to bootloader with
Code:
adb reboot bootloader
Unlocking the bootloader
1.) With the device connected, OEM Unlock enabled, and booted to bootloader, you can unlock the bootloader with the following command
Code:
fastboot flashing unlock
-- If nothing changes on your phone screen, use Device Manager to make sure the device is recognized via google drivers: vid here on that - Quick Fastboot Drivers Install Tutorial
2.) On your phone, use the volume keys to select Unlock Bootloader, then hit the power button, device should reboot back to bootloader
3.) flash the boot partition with the magisk patched boot.img
Code:
fastboot flash boot magisk_patched.img
4.) Now you can reboot back into your device and you should be rooted!
Code:
fastboot reboot
Congrats! Now you're bootloader unlocked and rooted! GrapheneOS is already available if you want a degoogled rom, haven't seen another rom pop up yet
all done from there
updating your device when rooted
I do not have a pixel 6a specifically for this right now to confirm this will work, but on every other device with OTA's, this has been my process.
1.) Download your OTA using the system update part of Settings
2.) When it pops up and is ready to restart to finish installing the update, DO NOT CLICK RESTART IN SETTINGS/SYSTEM UPDATE
3.) Go to Magisk Manager, and select Install next to Magisk
4.) Select "Install to Inactive Slot (After OTA)
5.) When its done patching the boot partition, hit restart in Magisk
Your OTA Update is now rooted

To save time and effort here is the magisk patched boot.img for June 2022 patch level, Carrier Unlocked 6a from the Google Store. Make SURE you are on build SD2A.220601.003 before flashing!

To get the `OEM Unlock` option in Developer Options to work, it's simpler to just manually flash 12.1.0 (SD2A.220601.004, Jun 2022, Verizon, Verizon MVNOs) and then wipe.
Even though it's label as Verizon, it should work for all carriers.

Hello, if we have already unlocked the bootloader, we just have to do this: start cmd then fastboot flash boot magisk_patched.img then restart the phone?

jejemc said:
Hello, if we have already unlocked the bootloader, we just have to do this: start cmd then fastboot flash boot magisk_patched.img then restart the phone?
Click to expand...
Click to collapse
Correct, though I would probably fastboot boot first just to make sure it boots up ok. When it does you can reboot to recovery and flash it.

these instructions sound like "the usual process", but for the 6a isn’t there something to patch regarding vbmeta as well?
(never had a phone that "needed" this, but in my understanding it "should" be necessary with the 6a? won’t have time to try out myself before the weekend, just asking ..)

ctfrommn said:
Correct, though I would probably fastboot boot first just to make sure it boots up ok. When it does you can reboot to recovery and flash it.
Click to expand...
Click to collapse
here it is and does and works perfectly well thank you for everything.

Im starting work on my custom kernel now so hopefully MVK for Bluejay will be ready in the coming days/weeks.

Zaxx32 said:
To save time and effort here is the magisk patched boot.img for June 2022 patch level, Carrier Unlocked 6a from the Google Store. Make SURE you are on build SD2A.220601.003 before flashing!
Click to expand...
Click to collapse
As this thread ages, not everyone will have the June 2022 update. That's why I suggested/put the steps in to do it themselves with matching firmware to what their device is on.
benji said:
To get the `OEM Unlock` option in Developer Options to work, it's simpler to just manually flash 12.1.0 (SD2A.220601.004, Jun 2022, Verizon, Verizon MVNOs) and then wipe.
Even though it's label as Verizon, it should work for all carriers.
Click to expand...
Click to collapse
This DID NOT work for me. That's why I wrote this up the way I did.
jejemc said:
Hello, if we have already unlocked the bootloader, we just have to do this: start cmd then fastboot flash boot magisk_patched.img then restart the phone?
Click to expand...
Click to collapse
If you're bootloader is already unlocked, you just have to flash the patched magisk boot img, correct. I wrote this up for those having issue with not having the ability even if it is an unlocked from google device
frank93 said:
these instructions sound like "the usual process", but for the 6a isn’t there something to patch regarding vbmeta as well?
(never had a phone that "needed" this, but in my understanding it "should" be necessary with the 6a? won’t have time to try out myself before the weekend, just asking ..)
Click to expand...
Click to collapse
Correct, these are basically the usual steps. There's nothing regarding vbmeta flashing in this case of just rooting stock firmware. You only need to do that with ROMs (GSI's mainly)

KaptinBoxxi said:
3.) flash the boot partition with the magisk patched boot.img
Code:
fastboot flash boot magisk_patched.img
Click to expand...
Click to collapse
Just a heads up. As already told by ctfrommn, it's always a better approach to first boot the magisk patched boot file. And if everything works well and good, you could then Direct Install it via Magisk.
Although directly flashing should also work, but its always better to be on the safer side.

KaptinBoxxi said:
Correct, these are basically the usual steps. There's nothing regarding vbmeta flashing in this case of just rooting stock firmware. You only need to do that with ROMs (GSI's mainly)
Click to expand...
Click to collapse
I followed your steps to a T. Still can't unlock. I'm convinced there is a fault with my device itself at this point.

stormcrank said:
I followed your steps to a T. Still can't unlock. I'm convinced there is a fault with my device itself at this point.
Click to expand...
Click to collapse
they will warranty replace if it for sure fails still. Its a silly situation, but mistakes happen

binary**# said:
Just a heads up. As already told by ctfrommn, it's always a better approach to first boot the magisk patched boot file. And if everything works well and good, you could then Direct Install it via Magisk.
Although directly flashing should also work, but its always better to be on the safer side.
Click to expand...
Click to collapse
I may not be very active on XDA, but have been rooting and rom'ing devices since the palm pre, first android phone was the droid x. I've never heard of this step, its never been needed. Its an extra pointless step that is just tethered root. You don't need to do it. As long as you don't download a random Boot.img, like the one for some reason attached to a reply on this thread and get it yourself from the firmware matching your device OR flashing Magisk via TWRP/Lineage Recovery with adb sideload, there's no reason to fastboot boot the boot.img.

You may have never run into an issue flashing a boot image but I've built thousands of roms and kernels and have learned the hard way more than once to measure twice, cut once.
That said, as long as you're simply patching a stock boot.img it's likely not an issue.

Followed all steps, on SD2A.220601.003SD2A.220601.003. OEM unlock still greyed

Nice work, Kaptinboxxi. Everything worked fine. How should we handle updates after rooting? Will a security patch break root? If so, what is the best process to root it again?

Voxilli said:
Nice work, Kaptinboxxi. Everything worked fine. How should we handle updates after rooting? Will a security patch break root? If so, what is the best process to root it again?
Click to expand...
Click to collapse
Yes, each update will require reflashing a patched kernel for the new build.

You can also do the "Install to Inactive Slot" method in Magisk to update and keep root. This has been a bit of a hit and miss for some people on the Pixel 6 series, though. The misses may be in large part be due to people having modified their partitions or not restoring the necessary images while being on a custom kernel.
OTA Upgrade Guides
The Magic Mask for Android
topjohnwu.github.io

Lughnasadh said:
You can also do the "Install to Inactive Slot" method in Magisk to update and keep root.
OTA Upgrade Guides
The Magic Mask for Android
topjohnwu.github.io
Click to expand...
Click to collapse
Good call...I guess I've never messed with that as I flash so many kernels anyway.

Lughnasadh said:
You can also do the "Install to Inactive Slot" method in Magisk to update and keep root. This has been a bit of a hit and miss for some people on the Pixel 6 series, though. The misses may be in large part be due to people having modified their partitions or not restoring the necessary images while being on a custom kernel.
OTA Upgrade Guides
The Magic Mask for Android
topjohnwu.github.io
Click to expand...
Click to collapse
That's what I've done with my OnePlus 7T for the last three years. Any repercussions for doing it this way versus patching the kernel?