Develop Bugs

[Q] Very hard bricked. Please help!

So a couple nights ago everything was working just fine. Locked my Nexus 7 and went to sleep. The next morning I try to unlock it, but I just have a completely black screen. No backlight or anything. I force shut it off and try turning it back on. It gives me the TWRP loading screen and freezes there (I'm rooted with custom recovery but no custom rom). It does this twice, then booting gives me nothing. No Google logo, no boot animation, nothing. I boot into the bootloader and figure I'll re-flash my recovery and see if I can get to that. No commands will send via fastboot. I'm able to execute "fastboot reboot-bootloader", but nothing else works.
Now I'm familiar with switching USB ports and USB cables, but even after using two different cables (Nexus 7 2013 and Nexus 4) and about 6 different USB ports (both USB 3, and USB 2), nothing. I can't send a new recovery, new bootloader or anything.
So I figure I'll try re-locking the bootloader and then unlocking so it'll hopefully do a factory reset and might help. Well locking worked fine, however when I run "fastboot oem unlock" it brings me to the confirmation screen. I'm able to press the up volume button and press the power button to confirm, but after this it freezes and I have to do another force restart. I've reinstalled the USB drivers, reinstalled the Android SDK, and tried it on a different computer with no Android drivers at all. I've installed the offical Google USB drivers, used the Nexus Root Toolkit to install them, and used PDAnet to install drivers.
It's driving me crazy. It was literally working perfectly the night before, and the next morning it's like there's some catastrophic damage to the device.
Does anyone have any experience with this sort of extreme scenario?
Any help at all would be appreciated! Thank you!

Have you downloaded the factory Google image, then boot to the bootloader, and use fastboot commands to completely erase and reflash the stock image?
- Sent from my Galaxy S3

RMarkwald said:
Have you downloaded the factory Google image, then boot to the bootloader, and use fastboot commands to completely erase and reflash the stock image?
- Sent from my Galaxy S3
Click to expand...
Click to collapse
I was able to erase the boot image, recovery, user data, ect.. because I read to do that if you have intentions to reflash the factory images. However, this was still after my problem of not being able to unlock the bootloader. I think I may be able to flash the factory images if it weren't for the fact that every time I try to unlock the bootloader it freezes completely.

Did you let the tablet reboot after running "fastboot oem lock"?
---------- Post added at 02:46 PM ---------- Previous post was at 02:38 PM ----------
Did you flash the factory images after erasing them? After you run "fastboot oem lock", the device will reboot, but if you erased everything and didn't flash the images, nothing is there to boot to.
Download the Nexus 7 JSS15R OEM image.
Extract the compressed file to the folder where your fastboot.exe lives. Typically this is the platform-tools directory in the SDK.
Open a command prompt window where your fastboot.exe lives.
Type in the following commands and press enter after each one.
Code:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader razor-jss15r/bootloader-flo-flo-03.14.img
fastboot reboot-bootloader
fastboot -w update razor-jss15r/image-razor-jss15r.zip
Wait for the image to flash. The tablet will automatically reboot, let it do so. Once done, rush through initial device setup, don't worry about Google credentials right now or anything. Once to the homescreen, reboot back into fastboot to run:
Code:
fastboot oem unlock
Then let the tablet reboot.
THESE INSTRUCTIONS ARE ASSUMING THIS IS THE WIFI VERSION ONLY. THEY'LL WORK FOR THE LTE, JUST REPLACE FOLDER AND FILE NAMES AS NEEDED.

Nexus 7 - 2nd gen: update failed to Lollipop 5.1

HI everyone,
I updated "successfully" from Kitkat to 5.0.2 on my rooted (stock ROM) Nexus 7 second gen.
Unfortunately, when I tried to upgrade to 5.1 everything seem to be normal until the device rebooted and it went through the "update process". 3/4 the way through, the green droid went on his back and the "ERROR" message appeared.
I wiped the cache partition but that doesn't help. I tried to download the update in safe mode, but no success. I also find it odd that each time I reboot my device, I get a message from Android that it is "updating my apps".
If I didn't have any apps and a lot of data on my Nexus, I would wipe the device clean but I'd rather avoid this, if at all possible.
Is there a way to upgrade to 5.1 or reinstall 5.0.2 without losing everything?
Thanks

Michael Carleone said:
Is there a way to upgrade to 5.1 or reinstall 5.0.2 without losing everything?
Click to expand...
Click to collapse
No problem. As you rooted it before then presumably it is unlocked and equipped with custom recovery, so all you have to do is:
boot TWRP
connect PC
transfer data and APKs to PC
flash OS
If you don't have TWRP installed, then boot it like this fastboot boot twrp-3.0.2-0-flo.img

k23m said:
No problem. As you rooted it before then presumably it is unlocked and equipped with custom recovery, so all you have to do is:
boot TWRP
connect PC
transfer data and APKs to PC
flash OS
If you don't have TWRP installed, then boot it like this fastboot boot twrp-3.0.2-0-flo.img
Click to expand...
Click to collapse
Hi,
Thanks for the reply. I rooted with Kingroot. I don't believe I have a custom recovery. The bootloader is locked as shown when I boot into recovery mode.
I want to avoid transferring my data and APK files to my PC.
Should I assume there is no way of reinstalling the OS without wiping out the device?Also, there is no link in the above quote: fastboot boot twrp-3.0.2-0-flo.img

Since I got no other replies, I went and restored to factory image. I do have another question. I hope I get a better response there: http://forum.xda-developers.com/nex...a/nexus-7-2013-wifi-root-marshmallow-t3515072

Thanks for the reply.
Can we compare using fastboot flashing TWRP vs Nexus Root Tool Kit: http://www.wugfresh.com/nrt/? I ended up using this utility instead because it was pretty much one click and it didn't require command lines and for whatever reason, I found instructions using fastboot a bit confusing. Which method is better or has more advantages? I left my bootloader unlocked.
Incidentally, I think there was something wrong with my Nexus image. As a result, I did use Google's instructions on how to flash etc. the OEM image. Instructions weren't ideal but I managed to figure things out: https://developers.google.com/android/images
The instructions are here which I assume would be similar if I wanted to fastboot TWRP?
To flash a system image:
Download the appropriate system image for your device below, then unzip it to a safe directory.
Connect your device to your computer over USB.
Start the device in fastboot mode with one of the following methods:
Using the adb tool: With the device powered on, execute:
adb reboot bootloader
Using a key combo: Turn the device off, then turn it on and immediately hold down the relevant key combination for your device. For example, to put a Nexus 5 ("hammerhead") into fastboot mode, press and hold Volume Up + Volume Down + Power as the device begins booting up.
If necessary, unlock the device's bootloader by running:
fastboot flashing unlock
or, for older devices, run:
fastboot oem unlock
The target device will show you a confirmation screen. (This erases all data on the target device.)
Open a terminal and navigate to the unzipped system image directory.
Execute the flash-all script. This script installs the necessary bootloader, baseband firmware(s), and operating system.
Once the script finishes, your device reboots. You should now lock the bootloader for security:
Start the device in fastboot mode again, as described above.
Execute:
fastboot flashing lock
or, for older devices, run:
fastboot oem lock
Locking bootloader will wipe the data on some devices. After locking the bootloader, if you want to flash the device again, you must run fastboot oem unlock again, which will wipe the data.
Click to expand...
Click to collapse
Also, I could've sworn that when I rooted KitKat on my Nexus, my data wasn't wiped out. I don't recall doing anything to the bootloader. I can't recall which method I used, but I know for certain I didn't use the Nexus Root Toolkit. I should've recorded my steps when I rooted.

i rooted my nexus 7 using towel root on kitkat .. i unrooted using supersu... and ota untill marhsmallow with out a problem never use kingroot as its so un stable.

Help, possibly bricked phone

Hello, I am currently rooted and on stock on pixel xl. I am trying to flash the pure nexus rom. I downloaded through the link in the op, factory reset and flashed through twrp (3.0.2rc1). When I went to reboot, it said OS not installed. Can anyone offer any assistance with this? Needless to say, I didn't reboot with that. I did however do a backup (of stock) prior to this. I decided to restore my backup but when it rebooted it said something about the vender image is not right with this system and to flash the correct image. This is exactly what its saying : Your vendor image does not match the system. Please flash the NOF27C vendor image for your device. I have managed to move the correct image file to the internal storage but from what i read, can only install through twrp.
And when it finished rebooting, now 90% of my apps are crashing, no fingerprint hardware, developer options are not available and I had to reboot back into recovery but its like twrp is gone, it looks like the stock recovery. Somehow it appears there are parts of my stock rom and pure nexus rom combined which is understandbly causing my issues. Right now I am trying to get back to having twrp but am stuck.
I have since tried to reinstall twrp but when I plug my xl into my pc, the pc recognizes it but no storage. I cant move a file from pc to xl because its saying disconnected or not responding. Tried to get a command prompt and when I shift/right click, there is no option. I don't know what else to do.
If anyone has any suggestions, please help. I am freaking over this. Can't use my phone in the state its in.

Sounds far from bricked.
Just entirely screwed up.
FASTboot the latest factory image and then refrain from tinkering for the weekend.
These are the steps i use.
I think a new ADB/FastBoot package was released yesterday you might want to install that.
Execute fastboot commands (assuming the bin is on your PATH)
fastboot flash bootloader c:\_PIXEL_XL_\bootloader.img
fastboot reboot-bootloader
fastboot flash radio c:\_PIXEL_XL_\radio.img
fastboot reboot-bootloader
fastboot flash boot_a c:\_PIXEL_XL_\boot.img
fastboot flash boot_b c:\_PIXEL_XL_\boot.img
fastboot flash system c:\_PIXEL_XL_\system.img
fastboot flash system_b c:\_PIXEL_XL_\system_other.img
fastboot flash vendor c:\_PIXEL_XL_\vendor.img
fastboot flash modem c:\_PIXEL_XL_\modem.img
fastboot reboot
To add TWRP and Root:
fastboot boot c:\_PIXEL_XL_\twrp.img
In TWRP, install twrp.zip
Reboot into the installed recovery
In TWRP, install supersu.zip

In need of some backup

Problem:
Unlocked phone is seemingly stuck in bootloop. Need guidance fixing it.
Explanation:
Hey guys,
I bought a used Nokia 6 (2018) and want to install a custom ROM on it. Last year, I used the paid service to have it unlocked - worked like a charm! So thanks again for that! After reading up on the topic, I set up drivers, adb and fastboot on my PC (Win10). I used
fastboot erase cache
fastboot erase userdata
fastboot erase boot
fastboot erase system​to prepare the phone and then
fastboot boot twrp-3.3.1-1-PL2.img​to get into TWRP. Next is where I ****ed up I think.
I followed a guide and moved twrp-installer-3.3.1-0-PL2.zip on to my SD card. In TWRP, I chose "install" and then picked said installer. After that, I chose the option to reboot.
That must have been the wrong thing to do, because now the phone only boots into download mode. When I hold the power button it does not shut down, but instead instantly reboots into download mode.
When I type
fastboot devices​I still get
PL2GAR9811701240 fastboot​and Windows plays the "connect" sound, when I plug it in. Yet all fastboot commands (boot, flash, reboot) now return
FAILED (Write to device failed (Unknown error))​What can I do at this point? Can I somehow revert to stock? How is that done? Can I use this guide and the linked stock ROM?
If you'd like more information, just ask away. I'm glad for any guidance at this point, so thanks in advance for your help!

Recovering data on a DEAD Redmi Note 8 PRO

Hello,
I hope this is the right section for this post.
I've been using a Note 8 Pro with zero issues until one week ago when I accidentally dropped the phone in the water.
After a few seconds submerged the display turned off and I felt an intense heat coming from the zone of the battery.
Having no chance to recover the phone (tried with Isopropyl Alcohol too) I decided to open it and manually dry/clean each component, having seen the situation inside gave me the phone is dead but I still want to recover some pictures/data from it.
Before opening the open Minitool was not detecting any device on my Windows Laptop, after cleaning each component Minitool is instead detecting the phone via USB, but I still can't extract any data because the "Usb debugging" option is not tuned on (and no the device is not rooted).
Is there any option to extract data from the phone? There's a way to turn on USB Debugging via ADB on a non-rooted phone?
Thanks,
Andrea.

how about trying your luck with a service ? most of the time they do have access to special programs, which have a better functionality than adb.

Thanks for the hint, but I am not happy with the idea of someone playing with my data

1. Try reboot phone to recovery
2. Connect it to your computer (download Platform-tools)
3. In the folder with Platform-tools open cmd
4. In cmd - adb shell
5. cd storage/emulated/0
6. ls
7. Now, using the commands, drag files from your phone to your PC

Thanks for your hint.
No luck so far, I think because the phone is not in recovery mode.
I can hear the phone starting up several times (hear the jingle) so I think it's in a reboot loop and I don't know how to boot it into recovery mode wo a working display (tried with power/volume up combination with no luck).
From the windows taskbar I can see that the phone is recognized for a few seconds before it restarts.
EDIT: trying to switch the phone on with the combination "power/volume down" brings to a kind of stable state and I can now see the phone in the windows taskbar recognized as a generic "android device". Still no luck when trying to access the phone as there's no device in windows and no device obtained through "adb devices" command.
EDIT1: I think that the phone is in "FASTBOOT" mode. If I type "fastboot devices" I can see it detected but still can't access it.

Any idea? Should I give up?

If it's popping up and down you need something to keep track.
You can try my UsbLog.exe (in the sig), it just sits there and shows what devices appear (if they have a driver) and disappear.
Try these to see if anything is working:
Code:
C:\>fastboot devices
C:\>fastboot getvar all
C:\>fastboot oem device-info

Yes it's popping up and down when it's booted in recovery mode whilst is stably connected when in fastboot mode but in this case I can't access the internal memory of the device.
I didn't get the purpose of logging the devices connecting to the USB as I can see the device connected for a while and correctly recognized as Redmi Note 8 pro but as it keeps popping out windows have no time to show it's folder.
As for the code you wrote: i will try asap but already tried with "fastboot devices" and I get the phone correctly listed but still can't access its memory as told.

Renate said:
If it's popping up and down you need something to keep track.
You can try my UsbLog.exe (in the sig), it just sits there and shows what devices appear (if they have a driver) and disappear.
Try these to see if anything is working:
Code:
C:\>fastboot devices
C:\>fastboot getvar all
C:\>fastboot oem device-info
Click to expand...
Click to collapse
After rebooting the phone in fastboot mode I can see it recognized as a generic android device from windows (still can't access the storage folder of the device).
fastboot devices----> I get the device listed with a series of numbers/letters
fastboot getvar all---> I get a list of information on token/token version/partition type and size/baseband/bootloader etc.
fastboot oem device-info----> FAILED (remote: unknown command)
So I think it's clear that the device is in Fastboot mode and instead is in a boot loop when started in revocery mode.
Is there a way to extract data from fastboot mode?
Thanks,
Andrea.

If you put a custom recovery on it in the first place you can try reflashing recovery from fastboot.
Fastboot doesn't allow you to read anything.
oem device-info is obviously an oem command that might not be on any device.
You've got a Mediatek processor. That has some low level equivalent to Qualcomm EDL, but I have no experience with that.
If you can get there you can download the user data partition, but it's probably encrypted. Also no experience with that.
The easiest is if you can get the system to mount/decrypt the partition.
You've tried the normal system too?
Is this A/B? Have you tried changing slots?
How much time does it stay up in recovery? Do you have ADB? Maybe try:
Code:
# stop recovery
Does that prevent it from looping?

So I should try to flash a custom recovery like TWRP for example?
What you mean with "normal system too"?
Changing slots you mean changing usb port?
It stays in recovery less than one second so I can't give any command via ADB.
EDIT: cant' flash any custom recovery because the bootloader is locked.
If I Try to unlock the bootloader via MiUnlock I get a warning saying that all data will be erased.
Any idea on how to unlock the bootloader wo wiping all the data?

Sephiroth79 said:
So I should try to flash a custom recovery like TWRP for example?
What you mean with "normal system too"?
Changing slots you mean changing usb port?
It stays in recovery less than one second so I can't give any command via ADB.
EDIT: cant' flash any custom recovery because the bootloader is locked.
If I Try to unlock the bootloader via MiUnlock I get a warning saying that all data will be erased.
Any idea on how to unlock the bootloader wo wiping all the data?
Click to expand...
Click to collapse
There is a mediatek bootloader unlocked you just have to boot in Brom mode and it'll unlock it please follow this
PS: press all buttons

MysticNoOb said:
There is a mediatek bootloader unlocked you just have to boot in Brom mode and it'll unlock it please follow this
PS: press all buttons
Click to expand...
Click to collapse
My bootloader is unlocked!
Thank you very much.
Now I am going to try to flash a custom recovery mode via fastboot in order to access the internal memory of the phone.
EDIT: I've just flashed twrp-3.6.2_9-0-begonia.img but still can't boot into recovery mode.
Any hint on how to extract data from the system now?

You really want to boot the normal system because that's the best way to get decrypted data.
I realized that you don't have ADB enabled there.
You should look at B. Kerler's https://github.com/bkerler/mtkclient/
If you can pull the boot image off your device then I might be able to fix it so that you have ADB.
You'd have to flash it back in fastboot or mtkclient.
You can also pull a copy of userdata off the device with mtkclient.
As far as booting into recovery, there's a way.
Here's how, if you don't have A/B (that is you flashed TWRP into recovery and not recovery_a or recovery_b)
then you can fastboot flash a special file into the misc partition and it wil boot into recovery next reboot.
To return things to normal you have to flash the empty file to the misc partition.
Code:
C:\>fastboot flash misc misc-rec.img
C:\>fastboot reboot
Only do this if you don't have partitions that end in _a or _b

I really don't know if I have partitions A and B as you mentioned and I think there's no way to check actually.
I confirm I don't have "USB Debugging" active on the phone.
So if I understand correctly I should do the following:
- Flash misc-reg.img via Fastboot
- Boot into recovery just rebooting the system after flashing the above file;
- use MTKclient to dump userdata or boot image to enable ADB on (I will need help with mtkclient I suppose).
Is it correct?
EDIT: flashed TWRP first and misc-rec then rebooted via Fastboot/Reboot but nothing happens.

Sephiroth79 said:
My bootloader is unlocked!
Thank you very much.
Now I am going to try to flash a custom recovery mode via fastboot in order to access the internal memory of the phone.
EDIT: I've just flashed twrp-3.6.2_9-0-begonia.img but still can't boot into recovery mode.
Any hint on how to extract data from the system now?
Click to expand...
Click to collapse
TWRP cant boot because you used wrong one. Search again in that unlock bootloader channel and use suitable one.

Kirasu2080 said:
TWRP cant boot because you used wrong one. Search again in that unlock bootloader channel and use suitable one.
Click to expand...
Click to collapse
Hmmm, I am almost sure that the TWRP I've flashed was listed under Redmi Note 8 pro page. Can you please indicate more precisely where should I sera
EDIT: I think I've downloaded and flashed the correct TWRP file.
@Renate can you please detail your method so I can try to extract data from the phone?

Sephiroth79 said:
Hmmm, I am almost sure that the TWRP I've flashed was listed under Redmi Note 8 pro page. Can you please indicate more precisely where should I sera
EDIT: I think I've downloaded and flashed the correct TWRP file.
@Renate can you please detail your method so I can try to extract data from the phone?
Click to expand...
Click to collapse
1/Yeah it's official. You "flashed correct TWRP." Downgrade to Miui Android 9 (_9 in it's name) to boot into that TWRP and lose your data.
2/In unlock bootloader video above, search other video in his channel playlist and find TWRP video suitable for your Miui version.

Kirasu2080 said:
1/Yeah it's official. You "flashed correct TWRP." Downgrade to Miui Android 9 (_9 in it's name) to boot into that TWRP and lose your data.
2/In unlock bootloader video above, search other video in his channel playlist and find TWRP video suitable for your Miui version.
Click to expand...
Click to collapse
Can't find the right video, can you kindly send me a link (I am on the latest Miui version and I am in Europe)?
In all the videos I've seen on his page he is using the device to install TWRP etc.
I think I just need the correct TWRP version for my MIUI release and then I'll flash TWRP and misc-reg.img. Is it right?

Sephiroth79 said:
Can't find the right video, can you kindly send me a link (I am on the latest Miui version and I am in Europe)?
In all the videos I've seen on his page he is using the device to install TWRP etc.
I think I just need the correct TWRP version for my MIUI release and then I'll flash TWRP and misc-reg.img. Is it right?
Click to expand...
Click to collapse
Use brp 3.5.2 v3.1 or V3.6 to decrypt Miui 12.5