Database Users

[Q] N10 *seriously* bricked after CF-Auto-Root and OTA

Since I'm a newbie here I can't post this problem to "[N10] CF-Auto-Root". If some kind person with permissions could alert the people there to this problem I'd really appreciate it.
I installed CF-Auto-Root on my Nexus 10, and after an OTA upgrade to 4.3 the tablet is seriously bricked. The sequence was as follows:
* Started from stock 4.2.2
* Downloaded the latest CF-Root (July 29)
* Manually re-rooted (as instructed on first page)
* Everything is peachy. su in adb shell works, get root prompt, etc. Browsed directories but made no changes.
* Attempted an OTA upgrade to 4.3 (Forgot to re-lock the bootloader). Upgrade failed, giving some generic (as in uninformative) error message. I think it was something about file check failed,
Now the tablet boot-up doesn't get past the colored X. I can get into bootloader/fastboot mode (robot on back with panel open). The device information is as follows:
Product Name: manta
Variant: wifi
H/W Version: 8
Bootloader Version: MANTALJ12
Carrier Info: NONE
Serial Number: <looks okay>
Lock State: UNLOCKED
Reboot Mode Flag: NONE
This is where I was when I first loaded CF-Root. However, now "adb devices" on the PC (Arch Linux) gives a blank list of devices. When I try to load the factory 4.3 image with "fastboot -w flashall" the PC prints the message:
< waiting for device >
and sits there. Not surprising since adb can't see the device.
I can get into recovery mode (robot on back with red triangle), and can access the menu. Performing wipe data / factory reset hasn't helped. From my PC "adb devices" still shows a blank list of devices.
When I start the "Apply update from ADB" utility from recovery mode, "adb devices" on the PC shows:
???????????? no permissions
If I then enter "adb sideload <file>" on the PC as the prompt on the tablet suggests (the file I used was an Android 4.3 upgrade zip file), the PC responds with:
error: insufficient permissions for device
Does anyone have any idea how I can get my tablet out of this mess? Right now all I want is to get my tablet working again. Any ideas are most welcome.

There's no point in running CF-Autoroot -before- updating to 4.3. You lose root after the update.
Also, just because you don't know what the error message means, doesn't mean it's not informative. What exactly was the error? Try fastboot mode and use the Nexus 10 toolkit located here: http://forum.xda-developers.com/showthread.php?t=2001868 to do a full flash. At this point it sounds like you've manually flashed a bunch of stuff so the regular update zip file is probably insufficient and you should be using the full factory image.

Solved
Got it solved (whew!). Had to run fastboot as root on the PC.

plastikowl said:
There's no point in running CF-Autoroot -before- updating to 4.3. You lose root after the update.
Also, just because you don't know what the error message means, doesn't mean it's not informative. What exactly was the error? Try fastboot mode and use the Nexus 10 toolkit located here: http://forum.xda-developers.com/showthread.php?t=2001868 to do a full flash. At this point it sounds like you've manually flashed a bunch of stuff so the regular update zip file is probably insufficient and you should be using the full factory image.
Click to expand...
Click to collapse
Yeah, I knew I'd lose root, but I'd already installed CF-Autoroot. Figured it would be easy to root again after. Foolish me!
Afraid I forgot to write down the error so it's lost. I was trying to do a full flash but failing (see my "solved post"). The update attempt was desperation, trying to get to the tablet somehow.
Anyway, I managed to do a full flash to the 4.3 factory image, so my tablet is no longer an expensive paperweight.
Thanks very much for yout input.

Problem with update to ZNH0EAO2NN

HI,
I have a serious problem with an update from first snapshot ZNH0EAO1QC to the second snapshot ZNH0EAO2NN.
The device was not rooted or otherwise altered and has the had the default cyanogenmod recovery. I have updated via update menu of the Z1. But restarting the devices from within this update process caused a bootloop.
Unfortunately it is not possible to go to recovery with power+volume, it also bootloops. Manually got to recovery gets the adb message:
su-wptnb8 /home/karbach: adb devices
List of devices attached
cfb1abbf unauthorized
su-wptnb8 /home/karbach: adb reboot recovery
error: device unauthorized. Please check the confirmation dialog on your device.
Unfortunately, the device stays black and nothing is shown
fastboot does endlessly wait for device.
Any idea?
Thanks in advance

Sudden Boot-loops

Hi,
Just got an ZUK Z1 from one of my clients and the problem with the device is bootloops when trying to reach OS.
this issue came all of a sudden.
I managed to get into recovery and fastboot modes successfully but cmd won't show any serial after "fastboot devices" command but adb devices (while i'm in recovery mode via Aplly update from adb") showing serial accordingly and identify device.
when trying to push twrp or an update to CM OS in order to fix probable system files cmd replied
error: locked
i assuming it's the locked boot-loader.
even in wondershare mobilego the process stuck in 50%
i just need to backup client data.
Thanks for your kindly help,
- Oria, Israel.

Oria Maymon said:
Hi,
Just got an ZUK Z1 from one of my clients and the problem with the device is bootloops when trying to reach OS.
this issue came all of a sudden.
I managed to get into recovery and fastboot modes successfully but cmd won't show any serial after "fastboot devices" command but adb devices (while i'm in recovery mode via Aplly update from adb") showing serial accordingly and identify device.
when trying to push twrp or an update to CM OS in order to fix probable system files cmd replied
error: locked
i assuming it's the locked boot-loader.
even in wondershare mobilego the process stuck in 50%
i just need to backup client data.
Thanks for your kindly help,
- Oria, Israel.
Click to expand...
Click to collapse
I had the same problem..just reinstall twrp throw your computer ..and install the ROM you like

zukcyprus said:
I had the same problem..just reinstall twrp throw your computer ..and install the ROM you like
Click to expand...
Click to collapse
I can't because device is not recognized via fastboot and I have to save user data
Sent from my Robin using Tapatalk

In my case I erased everything...and throw my gmail I recovered everything..and don't install after cyanogen ROM ...if you can install zui xosp hexagon viper mokee or nuclearom .

Try this: https://forum.xda-developers.com/zuk-z1/help/boot-loop-cyanogen-logo-t3666056

TWRP won't boot

I am attempting to put lineageos on my new Mi A1, following the installation guide here https://wiki.lineageos.org/devices/tissot/install
I have previously installed lineage on my old Moto G LTE and a Samsung Galaxy S4 and have not run into issues.
I have unlocked the bootloader and all that but I can't get twrp to boot.
I boot into fastboot with
Code:
adb reboot bootloader
that works fine, then I
Code:
fastboot boot twrp-3.2.2-0-tissot.img
This seems to have no effect, other than my phone 'disconnecting' from the PC.
I get the following terminal output
Code:
./fastboot boot .\twrp-3.2.2-0-tissot.img
Downloading 'boot.img' OKAY [ 0.682s]
booting OKAY [ 0.623s]
Finished. Total time: 1.336s
However nothing happens on the phone, it still just has the fastboot logo on it.
At this point if I manually reboot (long-press power) it will reboot into stock rom.
If I manually reboot into recovery (long-press power+volume up) it will reboot into stock recovery
I have ensured my sytem tools are up to date, and tried the previous version of twrp, and there is no change.
I WAS able to get twrp to boot using the "Mi A1 Tool" i found here https://forum.xda-developers.com/mi-a1/how-to/tool-xiaomi-mi-a1-tool-drivers-unlock-t3742857
However I was not able to install lineage due to an error.
I did not copy the exact output but it was something along the lines of
error 7, kInstallDeviceOpenError
After this attempt, I reflashed the stock rom using Xiaomi tools, and am back to the beginning.
The phone is fully up-to-date with stock updates, Android 8.1, July security update.
Once again went through the bootloader unlocking, and everything, but have arrived at the same result.
Anyone have any ideas?
any help would be greatly appreciated!
Thanks!

Hey, could you try this TWRP made for Oreo? https://www.androidfilehost.com/?fid=818070582850498337 (thread: https://forum.xda-developers.com/mi-a1/development/recovery-twrp-3-1-1-0-touch-recovery-t3688472)
I've also had some issues booting TWRP, but running
Code:
fastboot oem unlock
was enough to boot it successfully (
Code:
fastboot boot recovery-3.2.1-2-oreo.img
)

Thank you!
dgadelha said:
Hey, could you try this TWRP made for Oreo? https://www.androidfilehost.com/?fid=818070582850498337 (thread: https://forum.xda-developers.com/mi-a1/development/recovery-twrp-3-1-1-0-touch-recovery-t3688472)
I've also had some issues booting TWRP, but running
Code:
fastboot oem unlock
was enough to boot it successfully (
Code:
fastboot boot recovery-3.2.1-2-oreo.img
)
Click to expand...
Click to collapse
This recovery image worked great, AND installed lineage, thank you very much.
However, I am now unable to get gapps working.
I was pointed to this changelog here https://lineageos.org/Changelog-19/ by a user in the lineage subreddit.
I rebooted from twrp into the lineage recovery, chose Apply Update -> Apply from ADB
On my PC I run
Code:
./adb sideload .\MindTheGapps-8.1.0-arm64-20180610_024023
.zip
and after a pause I get the output
Code:
serving: '.\MindTheGapps-8.1.0-arm64-20180610_024023.zip' (~0%) adb: failed to read command: No error
and sometimes I get
Code:
serving: '.\MindTheGapps-8.1.0-arm64-20180610_024023.zip' (~0%) adb: failed to read command: Connection reset by peer
What happens on the phone has been a little different each time I have attempted this.
It either pops up on screen that it is unable to verify the file, install anyway?, doing so doesn't work.
OR it is hung up on a progress bar screen, with the following log output, or a slight variation of it
Code:
Stopping adbd...
Now send the package you want to apply to the device with "adb sideload <filename>"...
Finding update package...
Opening update package...
Verifying update package...
E: Signature verification failed
E:error: 21 Restarting dbd... Installation aborted.
After many attempts of this, reflashing lineage, and trying again, it did miraculously start doing the transfer at one point. It got to 47% then failed again.

Can't you just install from recovery?
https://forum.xda-developers.com/mi-a1/development/rom-lineageos-15-1-t3757938

pidermin said:
This recovery image worked great, AND installed lineage, thank you very much.
However, I am now unable to get gapps working.
I was pointed to this changelog here https://lineageos.org/Changelog-19/ by a user in the lineage subreddit.
I rebooted from twrp into the lineage recovery, chose Apply Update -> Apply from ADB
On my PC I run
Code:
./adb sideload .\MindTheGapps-8.1.0-arm64-20180610_024023
.zip
and after a pause I get the output
Code:
serving: '.\MindTheGapps-8.1.0-arm64-20180610_024023.zip' (~0%) adb: failed to read command: No error
and sometimes I get
Code:
serving: '.\MindTheGapps-8.1.0-arm64-20180610_024023.zip' (~0%) adb: failed to read command: Connection reset by peer
What happens on the phone has been a little different each time I have attempted this.
It either pops up on screen that it is unable to verify the file, install anyway?, doing so doesn't work.
OR it is hung up on a progress bar screen, with the following log output, or a slight variation of it
Code:
Stopping adbd...
Now send the package you want to apply to the device with "adb sideload <filename>"...
Finding update package...
Opening update package...
Verifying update package...
E: Signature verification failed
E:error: 21 Restarting dbd... Installation aborted.
After many attempts of this, reflashing lineage, and trying again, it did miraculously start doing the transfer at one point. It got to 47% then failed again.
Click to expand...
Click to collapse
Hey,
Install GApps also at TWRP. Signature verification is failing most probably because the Lineage Recovery should be accepting only Lineage-signed ZIP files.
You can install TWRP in your current boot image (so you don't need to boot TWRP everytime through fastboot) with this ZIP: https://www.androidfilehost.com/?fid=746010030569959456 (yet, you need to boot to TWRP through fastboot so you can flash it, but no need to boot it manually after installing it). Notice that after every system update you may need to install TWRP again (same for Magisk), as boot images get replaced.
Also, if sideload fails, you can just do a
Code:
adb push filename.zip /sdcard/
then install the ZIP directly from the "Install" section on TWRP.
Thanks!

Thanks a lot!
I found and was able to follow this guide
https://forum.xda-developers.com/mi-a1/how-to/lineageos-gapps-magisk-twrp-dolbyatmos-t3762939
instead of the one on the lineageOS website, and I am up and running.
Thank you very much for your time!

Can't boot to recovery or fastboot
I'm totally not getting the problem, i am having network issues on my Mi A1 on both Oreo and pie. So I decided to install a custom ROM but I can't boot my device to fastboot or recovery, it simply reboots . I tried the hard keys as well as through the PC using command prompt it just reboots normally. Any suggestions on what should I do Please?

Azan Qazi said:
I'm totally not getting the problem, i am having network issues on my Mi A1 on both Oreo and and pie. So I decided to install a custom ROM but I can't boot my device to fastboot or recovery, it simply reboots . I tried the hard keys as well as through the PC using command prompt. Any suggestions on what should I do.
Click to expand...
Click to collapse
Have you tried doing reboot in the OS and choosing Recovery option?

Azan Qazi said:
I'm totally not getting the problem, i am having network issues on my Mi A1 on both Oreo and pie. So I decided to install a custom ROM but I can't boot my device to fastboot or recovery, it simply reboots . I tried the hard keys as well as through the PC using command prompt it just reboots normally. Any suggestions on what should I do Please?
Click to expand...
Click to collapse
TrueMS said:
Have you tried doing reboot in the OS and choosing Recovery option?
Click to expand...
Click to collapse
yes sir I did tried several times. But as I said above it simply reboots the system.

Google Pixel 3a (sargo) brick - error boot prepare

Hi,
Today I wanted change my recovery. I had the Lineage OS recovery, but i was trying to install the twrp recovery.
So, the guide of twrp says that you should boot the twrp via fastboot boot twrp.img and install via the booted twrp. But I mistaken the command and I wrote fastboot flash boot twrp.img, I tried to reboot and the device booted himself in fastboot with the enter reason "error boot prepare" and I can't boot into the system or recovery.
I tried to flash the official image downloaded from the Google Developers website, but when i run ./flash-all.sh, console get stuck. I waited for about 15 minutes but nothing. I tried even the official Android Flash Tool but after 10 seconds it says "Your device stopped responding. You may have to select restart in the bootloader menu in order for it to be recognised again."
Does anyone know how to help me? Thanks in advance.

GioPan_ said:
Hi,
Today I wanted change my recovery. I had the Lineage OS recovery, but i was trying to install the twrp recovery.
So, the guide of twrp says that you should boot the twrp via fastboot boot twrp.img and install via the booted twrp. But I mistaken the command and I wrote fastboot flash boot twrp.img, I tried to reboot and the device booted himself in fastboot with the enter reason "error boot prepare" and I can't boot into the system or recovery.
I tried to flash the official image downloaded from the Google Developers website, but when i run ./flash-all.sh, console get stuck. I waited for about 15 minutes but nothing. I tried even the official Android Flash Tool but after 10 seconds it says "Your device stopped responding. You may have to select restart in the bootloader menu in order for it to be recognised again."
Does anyone know how to help me? Thanks in advance.
Click to expand...
Click to collapse
Do you have tryied to run the official google tool in Windows to try to rescue it?

Estebiu said:
Do you have tryied to run the official google tool in Windows to try to rescue it?
Click to expand...
Click to collapse
Yes, I wrote in the post, I tried both the command line tool and the chrome version. Btw i'm on linux

Okay so, I fixed.
For anyone who will have this problem you just need to flash official Android 9 and next Android 10. Only with Android 10 you can use fastboot flash boot recovery.img (you can't use twrp in android 10 with the Pixel 3a)

GioPan_ said:
Okay so, I fixed.
For anyone who will have this problem you just need to flash official Android 9 and next Android 10. Only with Android 10 you can use fastboot flash boot recovery.img (you can't use twrp in android 10 with the Pixel 3a)
Click to expand...
Click to collapse
I'll try this...

GioPan_ said:
Okay so, I fixed.
For anyone who will have this problem you just need to flash official Android 9 and next Android 10. Only with Android 10 you can use fastboot flash boot recovery.img (you can't use twrp in android 10 with the Pixel 3a)
Click to expand...
Click to collapse
Does this work if adb not working? I only have fastboot.

WriteLovey said:
Does this work if adb not working? I only have fastboot.
Click to expand...
Click to collapse
It depends if your pc were authorized, if it was, you can use fastboot to flash the stock version of Android 9, just running the flash-all(.bat) script.

GioPan_ said:
It depends if your pc were authorized, if it was, you can use fastboot to flash the stock version of Android 9, just running the flash-all(.bat) script.
Click to expand...
Click to collapse
I'm not certain I understand what you mean by PC authorized? I'm using a Windows 10 tablet. When the phone is attached to the computer it sees it as a device that can be disconnected through USB.

WriteLovey said:
I'm not certain I understand what you mean by PC authorized? I'm using a Windows 10 tablet. When the phone is attached to the computer it sees it as a device that can be disconnected through USB.
Click to expand...
Click to collapse
All is well. I'm back on my Pixel, yeah!

GioPan_ said:
It depends if your pc were authorized, if it was, you can use fastboot to flash the stock version of Android 9, just running the flash-all(.bat) script.
Click to expand...
Click to collapse
I just had an encounter with this. I was rooting my device (Pixel 3A) and messed up my partitions through accidentally attempting a downgrade which broke all my ****. I was unable to easily reset this device to factory, so it took me several days to figure out and root. I'm getting better though as a hacker, because a year ago this would have taken me a month.
I was able to enter recovery mode (lying down Android, NO COMMAND). From this recovery mode, adb devices -l recognized my device, although I was unable to get a shell.
At first, ADB was telling me the device was authorized, but I messed with a bunch of other stuff (tried to flash a bunch of different partitions and monkey around in general trying to install Magisk) and then ADB started telling me it wasn't authorized when I used devices -l.
Once it said unauthorized, I was unable to issue the device any commands with ADB, so I just used hardware keys to get into recovery mode. From there, I selected OTA update, and it got into sideload mode. At that point, I used adb sideload with the OTA package that I downloaded here https://developers.google.com/android/ota
^^^ That operation did successfully restore my device to factory
This following guide here describes the details of how to use hard keys to enter recovery on this phone (don't download anything from there tho, and make sure your adblock is on)
How to Hard Reset your new Google Pixel 3a [Tutorial]
In this article, you will learn how to start your Google Pixel 3a up into the Recovery Mode and perform the Hard Reset to make it work perfectly again.
thedroidguy.com

I just wanted to say, I've been wrestling this hardbrick for a couple of days with my Pixel 3a.
I've finally overcome it by sideloading the most recent OTA update after using a hard key combo to get into recovery mode. The hard key combo is hold Power Button, tap Volume Up, then release both. Then, all you need is to use the command:
adb sideload <OTA.zip>
^^^OTA wasn't the actual filename though, you can download OTA packages for Pixel 3A here: https://developers.google.com/android/ota
the OTA binaries are NOT the same as the factory images, which is here
Factory Images for Nexus and Pixel Devices | Google Play services | Google for Developers
developers.google.com
Sideloading the OTA package brought my phone back from only having fastboot and recovery mode, even when flash-all.sh from the official downloaded firmware failed. Now I know how to undo damage that I cause by rooting this thing. Since I sideloaded newest firmware, it was also like applying an update. I easily got root after that, and I've logged the process. I'll make it into a guide soon

I'll just note that if you accidentally flashed the TWRP boot image instead of simply booting into it, I believe all you have to do is flash the stock boot.img to fix the problem. Obviously you can sideload the entire rom image, but that shouldn't be necessary.
Using the Windows computer (or whatever computer you are sending ADB commands from), download the full stock image directly from Google. Unzip it and then upzip the folder inside. You should find the boot.img file inside that folder. Take that file and then flash it to the phone using the normal ADB command: fastboot flash boot boot.img
While I haven't tried this myself recently, it should work in theory. The command "fastboot flash boot twrp.img" flashes the boot partition with a non-working twrp image, so replacing the faulty image with the stock boot.img should fix the problem.

If I did the same I would first attempt to manually put device in bootloader/aka fastboot mode then fastboot flash the stock boot.img , sudo fastboot flash boot boot.img --slot all
I only read the op (first post here);but I betcha that would have worked. Then sudo ./flash-all.sh and let it do it's thing.