Boot loop after flashing latest Android 7 image - Nexus 6P Q&A, Help & Troubleshooting

While on a developer preview of Android N with my unlocked rooted phone and TWRP 3.0.2-1, I accidentally ran the September OTA. The OTA failed, but left a mess behind with the phone rebooting 4-5 times a day.
Today, I decided to fix the problem, so I flashed the latest official image (NRD90U). Complete wipe, but since I have backups, I considered it to be no big deal. Turns out it was
The phone is now a boot loop (corrupt warning -> google logo -> corrupt warning -> google logo...). Reflashing changes nothing. Trying to boot (fastboot boot) TWRP (any version) does not work (it just goes into the boot loop). Tried to downgrade back to 6, same problem. Nothing seems to work.
Somehow, something is still ****ed up on the phone, but I have no idea what. This seems to be very similar to this thread (http://forum.xda-developers.com/nexus-6p/help/help-help-help-hard-bricked-6p-t3428225/page3), but there does not seem to be a solution.
Is it definitely bricked or is there anything I can do from fastboot to try and fix this? I am unlocked. I just need a stupid TWRP so I can restore my backup and hopefully get back to a working state from there.
PS: I'm sure I downloaded the right image and flashed it properly.

Related

Need Help fixing my N4 :(

So I bricked my N4 somehow (I don't know if it is soft or hardbricked).
I was running latest N5X AOSP 6.0 Lollipop and everything was fine, when i decided to try the AICP 0.1 experimental LP. I made a clean install but it the first boot ended in a black screen. Then i rebooted into recovery and made a factory reset and since then Im stuck in an infinite bootloop.
So here is what i tried so far:
Flashed newest Factory Image via Fastboot and ADB. Result: Bootloop
(Flashed with flash-all.bat and every img by myself, i even tried without flashing cache.img and userdata.img, but everytime i ended in a bootloop that goes longer than 30 minutes)
I tried several Toolkits but nothing helps everytime I reboot its a bootloop.
But somehow when i flash the N5X AOSP 6.0 and let it boot for some minutes and then just shut it down and boot again i can see its optimizing my apps but when it comes to start them i just stays there...
I also tried to format my /cache with TWRP into FAT and back to Ext4 (that was one solution i found) but that doesnt seem to work too..
I am very frustrated and hope someone can help me

Factory reset after dirty flashing Oreo, now only boots into TWRP

So a while ago I had dirty flashed the Oreo update from this link: OREO open to give it a try and see if I could actually get away with a dirty installation. Phone was working ok but battery drain has been enormous, around 30-50% worse than with Android 7.1 especially on idle so I thought ok time to do a proper factory reset by wiping everything (Dalvik, cache, system).
Now, I selected Factory Reset from within the OS (not TWRP) but during the first reboot it booted into TWRP asking me for decryption password, I did a wipe so it forgot all about it but now it only boots into TWRP no matter if I do an Advanced Factory Reset wiping everything via TWRP's menu, phone starts, shows the LG logo for a couple of sec and then TWRP screen shows up.
I am thinking I should flash a stock Oreo recovery in order for the boot to the OS but not 100% sure if this will cause more trouble.
mclisme said:
So a while ago I had dirty flashed the Oreo update from this link: OREO open to give it a try and see if I could actually get away with a dirty installation. Phone was working ok but battery drain has been enormous, around 30-50% worse than with Android 7.1 especially on idle so I thought ok time to do a proper factory reset by wiping everything (Dalvik, cache, system).
Now, I selected Factory Reset from within the OS (not TWRP) but during the first reboot it booted into TWRP asking me for decryption password, I did a wipe so it forgot all about it but now it only boots into TWRP no matter if I do an Advanced Factory Reset wiping everything via TWRP's menu, phone starts, shows the LG logo for a couple of sec and then TWRP screen shows up.
I am thinking I should flash a stock Oreo recovery in order for the boot to the OS but not 100% sure if this will cause more trouble.
Click to expand...
Click to collapse
Flash the oreo update zip from westwood or zefie. You can find it in the rom and development section. Search for v20a
mprovi_15 said:
Flash the oreo update zip from westwood or zefie. You can find it in the rom and development section. Search for v20a
Click to expand...
Click to collapse
Thanks but being impatient, I tried flashing the stock recovery. This seemed to free the booting and reset process, phone showed the LG logo, then for 2 seconds "Deleting" then LG Logo again and I thought the factory reset was in progress. After like half an hour still stuck in LG logo I realized I've probably soft bricked it. Phone only starts and gets stuck in LG Logo. So I entered bootloader and re-flashed TWRP but unfortunately now I can't find a way to boot into recovery (the irony). Phone just starts and gets stuck in LG logo forever, only thing i can do is use Power+Vol down to reboot into bootloader but no way to boot into recovery or even shut it off. Any way to enter recovery at this state and flash the OREO zip?
I realize I should have just waited for instructions but coming from consecutive unlocked Nexus devices i thought the steps and processes would be similar...
Try to discharge the phone completely (to shut it off) and enter download mode (I don't know any other method to do it). With LG UP flash stock kdz from your model, if you search a bit you will find it. This should work. If it don't work I've seen a couple of posts with the same problem as yours, search for the solution there, but if you can enter download mode it should work LG UP.
mprovi_15 said:
Try to discharge the phone completely (to shut it off) and enter download mode (I don't know any other method to do it). With LG UP flash stock kdz from your model, if you search a bit you will find it. This should work. If it don't work I've seen a couple of posts with the same problem as yours, search for the solution there, but if you can enter download mode it should work LG UP.
Click to expand...
Click to collapse
Thanks for the quick reply. With a bit of Googling I found that you can use volume down to enter stock recovery. This confused me as when I did it I expected to see the TWRP welcome screen. Instead I saw the stock recovery screen which only gives you the option to do factory reset. I did it and then rebooted again into recovery and all of a sudden I saw the TWRP screen! I remember there is something weird with how TWRP sticks to the system or not, again very confusing compared to Nexus devices. Anyway, since I managed to enter Recovery I copied the OREO flashable zip to internal memory and flashed and phone booted fine, now I am waiting to set up a fresh 8.0 installation :good:
mclisme said:
Thanks for the quick reply. With a bit of Googling I found that you can use volume down to enter stock recovery. This confused me as when I did it I expected to see the TWRP welcome screen. Instead I saw the stock recovery screen which only gives you the option to do factory reset. I did it and then rebooted again into recovery and all of a sudden I saw the TWRP screen! I remember there is something weird with how TWRP sticks to the system or not, again very confusing compared to Nexus devices. Anyway, since I managed to enter Recovery I copied the OREO flashable zip to internal memory and flashed and phone booted fine, now I am waiting to set up a fresh 8.0 installation :good:
Click to expand...
Click to collapse
OREO flashable zip? I am searching it for a long time, where did you find it?

Mi A1 stuck in bootloop

Hi guys,
some days ago I woke up to my Xiaomi Mi A1 constantly rebooting (e.g. boot screen with the MI logo appears, gets brighter, android one logo appears, then the animation gets stuck and shortly after the device reboots). USB debugging was enabled, otherwise no changes to the system had been made prior to the bootlooping, e.g. no root, bootloader still locked, etc.
What I tried so far:
1. Factory reset via stock recovery -> No change
2. Started fastboot, unlocked the bootloader, booted TWRP and wiped data/cache, rebooted into fastboot and reinstalled latest official stock ROM (tissot_images_V10.0.10.0.PDHMIXM_20190613), which had been running on the device via OTA for about two weeks before the incident -> No change
3. Repeated step 2 with several older Stock ROMs (10.0.9 and 10.0.6) -> No change
4. Tried to flash various stock and custom ROMs via adb sideload and TWRP's install feature -> all fail as soon as the first of system_{a,b} partitions is supposed to be flashed
5. Tried to downgrade from 9.0 to 8.0/8.1 using this guide: https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624 -> No change
6. Ran fsck on Data and System partitions -> No errors found
7. Tried reinstalling current and old stock version anyway -> still no change
So I'm left with a device that's booting again and again and always freezing during the boot animation and I can't think of anything else I could try. Does anyone of you have an idea what I could try?
Thanks!
Same situation here....i was also latest pie,and same thing happened with me.but you are lucky you can unlock bootloader and your stock recovery is still there but mine is gone.
Totally hopeless. Waiting for some dev come like messenger of god and help us out from this ****ty problem.???

Can flash ROMs but can't boot them

I have a Huawei P10 Lite WAS-LX1. I had its bootloader unlocked in a phone repair shop (by shorting testpoint).
Now it always greets me with the message "Your device has been unlocked and can't be trusted".
I can load the boot into the bootloader and I can flash TWRP (I tried 3.4.0 and 3.3.1 from DarkJoker360 and also the one from Pretoriano80).
I am also able to flash system images, for example LineageOS from DarkJoker360.
At first that seemed to work to some extent: the new system kept crashing but at least it was booting.
I tried again and again and at some point I wiped everything but the sdcard using TWRP (that is, including the vendor partition). I suspect that's what I did wrong, because presently I can no longer boot into the ROM I am flashing. Instead, the phone waits for a few seconds, then vibrates once and restarts. The second time, it boots into "Huawei eRecovery" (where I can "Download latest version and recovery", "Wipe data/factory reset", "Reboot" or "Shutdown"). I am afraid of attempting to go back to the stock ROM as I wouldn't want the bootloader to become locked again.
Since I can still boot into both the bootloader and the recovery, I have hope I can recover. But I don't know how.
Does anyone understand what happened (and could explain)?
Also, does anyone know how I could boot into the ROM again?
Never mind. I went back to stock. Also, the bootloader became locked again during the process, so I will not try again.

Did I brick my phone?

So I wanted to install lineage OS for this Nokia 6 phone, but in the process of installing something went wrong. Suddenly I couldn't boot into the system (which was expected), and I also couldn't go to recovery either. Not twrp, not even the stock recovery. I can still go to the bootloader with fastboot tho and issue commands. I also tried re-flashing the firmware on the phone, but that doesn't help. Is my phone bricked? How can I fix this? Thanks.
Edit: The bootloader is unlocked.

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