Database Users

Help with bootloop

Hi,
I did search, but I didn't find any solution to the issue. I got the Nexus 6P 64 GB.
I unlocked my bootloader using the 6p Multitool. Thereafter I used my normal method of fastboot (Minimal ADB) to flash the boot.img from this thread http://forum.xda-developers.com/apps/supersu/wip-android-6-0-marshmellow-t3219344.
After that I flashed TWRP. Basically I followed the instructions here: http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928.
But my phone is not booting up.
It gives me this error:
Your device software cannot be checked for corruption. Please lock the bootloader."
But I tried that and it doesn't work. I tried from fastboot restoring to factory, but get the same message.
Please help me!

Did you check the enable oem unlocking in developer settings?
Sent from my Nexus 6P using Tapatalk

Yes. As I said, I achieved the unlock. Now I just can't get back into my phone or recovery or anything other than fastboot (where it says unlock)

isn't "Your device software cannot be checked for corruption. Please lock the bootloader." the new msg on boot when you are unlocked, and you have to wait ~10 secs before it startup ?

After that, I'm stuck on the Google screen. It just goes on and on. Left it for over 20 minutes at one point and it didn't get past it.
Edit: The multicolored animated google screen. The animation just keeps going and going.

Del.

Your issue might be due to the encryption of the phone. Take a look at this thread: http://forum.xda-developers.com/nex...recovery-twrp-2-8-7-0-touch-recovery-t3234976
From this thread:
NOTE: Decrypting data is not supported yet. The Nexus 6P will normally attempt to encrypt the device automatically on first boot. To use TWRP as you normally would, you will have to format data and install a slightly modified boot image with forceencrypt disabled. My Nexus 6P should arrive tomorrow and I will start working on decrypt once I get my hands on it.
Team Win Recovery Project 2.x, or twrp2 for short, is a custom recovery built with ease of use and customization in mind. Its a fully touch driven user interface no more volume rocker or power buttons to mash. The GUI is also fully XML driven and completely theme-able. You can change just about every aspect of the look and feel.

Read through that thread. Part of the issue is that I don't know which variant (MDA89D & MDB08K) I have, or how to find that out seeing as I can't boot into the phone.
If I have the variant I may be able to fix this through the unified toolkit (though I'm not sure of that)

Did you ever fix this?

Try flashing the factory image and starting from scratch. You must have messed up somewhere. Re-download the boot.img from Chainfire's thread, maybe that was corrupt or something.

1. Download the MDB08K factory image (it's not a variant, it's a Marshmallow update) and unzip it.
2. Download the MDB08K boot.zip from Chainfire's modified boot.img thread
3. Download latest SuperSU beta zip
Wipe phone in TWRP, to include format data.
In bootloader, fastboot flash MDB08K
fastboot flash modified boot.img (from zip)
In TWRP, ADB sideload SuperSU
Reboot and it should perform normally.

kibmikey1 said:
1. Download the MDB08K factory image (it's not a variant, it's a Marshmallow update) and unzip it.
2. Download the MDB08K boot.zip from Chainfire's modified boot.img thread
3. Download latest SuperSU beta zip
Wipe phone in TWRP, to include format data.
In bootloader, fastboot flash MDB08K
fastboot flash modified boot.img (from zip)
In TWRP, ADB sideload SuperSU
Reboot and it should perform normally.
Click to expand...
Click to collapse
Thank you for your reply, but I can't get into TWRP either!! Any way for me to restore to factory or do the repairs from in flashboot without the restore?

I ran into the same issue last night trying to install TWRP. I'm still not sure how to get around it but I did get my phone back. you should be able to get to the bootloader (hold the power button until phone turns off, then hold vol up+vol down+power) once there use ADB fastboot to go back to stock.
this link will walk you through what you need. follow step 7.
http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
here it is as well:
How To Flash The Factory Images (And Return To Stock)
Prerequisites: unlocked bootloader (section 1).
Download the appropriate factory images for your model here.
Unzip the angler-xxxxxx-factory-xxxxxxxx (x's replace variables) into a directory on your PC (for this guide we'll use C:\angler\).
Once unzipped you should have a folder named angler-xxxxxx (x's replace variables). Open it and move the following files to a new directory named C:\angler\images\:
bootloader-angler-angler-01.31.img
radio-angler-angler-01.29.img
(Please note that radio and bootloader naming changes from build to build so the filenames and below commands will change with them)
Within C:\angler\angler-xxxxxx\ you'll see another zip archive named image-angler-xxxxxx, unzip the contents of that zip into the C:\angler\images\ folder we created before. Now within C:\angler\images\ you should have the following files:
android-info.txt
boot.img
bootloader-angler-angler-01.31.img
cache.img
radio-angler-angler-01.29.img
recovery.img
system.img
userdata.img
vendor.img
Boot into the bootloader and connect your phone to your PC via usb cable.
Open a command prompt from within your fastboot folder (navigate to where you have fastboot.exe located on your PC, shift + right click anywhere within that folder, select open command prompt here), enter these commands to flash:
Code:
fastboot flash bootloader C:\angler\images\bootloader-angler-angler-01.31.img
fastboot reboot-bootloader
fastboot flash radio C:\angler\images\radio-angler-m8994f-2.6.28.0.65.img
fastboot reboot-bootloader
fastboot flash boot C:\angler\images\boot.img
fastboot erase cache
fastboot flash cache C:\angler\images\cache.img
fastboot flash recovery C:\angler\images\recovery.img
fastboot flash system C:\angler\images\system.img
fastboot flash userdata C:\angler\images\userdata.img
fastboot flash vendor C:\angler\images\vendor.img

Thank you. I was eventually able to do tysonwald's suggestion. First I didn't know what my version was, so I couldn't.
At some point I was able to get into the phone with constant gapp errors, check it.
Now my phone is unlocked and rooted. But when I go to settings to security (and when I tried to set up my fingerprint) settings crashes. Any ideas?
There was still some issue. I wiped the phone with the above method again, did NOT set up twrp/root, and everything works. It was something about the custom boot image I guess. Any advice if I want to try to set it up again?

Problem solved. Needed to update to newer image before doing everything. Issue resolve from Heisenberg's thread. Thank you all!

I had the same damn issue last night. Thise bootleg instructions had me flashing build k boot.img on build D. Maybe i wasnt paying attention lol!

I have a very similar problem, I flashed the k boot img. and now I'm stuck in an endless bootloop any idea?

TeriusPR said:
I have a very similar problem, I flashed the k boot img. and now I'm stuck in an endless bootloop any idea?
Click to expand...
Click to collapse
Read thru this guide and follow the instructions to the T. http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928

I had a similar issue just now where my phone got stuck at the TWRP logo. Selecting the reboot option in download mode refused to remove it. I had to follow step 10 to get my phone back to stock. I'm afraid to try this again now

Is there anyway to know which version do i need to download? i bought the phone already bricked and i am trying to bring it back to life

Huawei P8 GRA-L09 (New Zealand) NO OS

Hi I'm sorry if this is in the wrong place please direct me to where to go if it is.
My problem is I have a Huawei p8 with no os on it what so ever it has twrp and that's it. I have spent hours trying to read and find a working stock or even custom rom for the phone. The only ROM that seems to be able to be flashed is from fromFuture but when I flashed it through twrp it said success and then was still in boot loop. I really don't know what to do please help. Thank you

painterdannz said:
Hi I'm sorry if this is in the wrong place please direct me to where to go if it is.
My problem is I have a Huawei p8 with no os on it what so ever it has twrp and that's it. I have spent hours trying to read and find a working stock or even custom rom for the phone. The only ROM that seems to be able to be flashed is from fromFuture but when I flashed it through twrp it said success and then was still in boot loop. I really don't know what to do please help. Thank you
Click to expand...
Click to collapse
You need the masrhmallow bootloader for flash from furure ROM .
Forgive my English too, if I understood well the problem is you can not boot your operating system.Download the official rom and extract the boot and system images of the update.app.?*
Huawei update extractor?*http://forum.xda-developers.com/show...php?t=2433454.?*Once you have boot.img and recovery.img Download adb minimal and fastboot and universal drivers adb. In the folder where is adb minimal and fastboot copy boot.img and system.img.
Start the adb minimal, connect the USB cable to your computer, press volume down and connect the cable,or volumen down and power, so your phone will enter fastboot mode.
In the Command window of minimal adb type the following:?*
fastboot devices and pressing enter to ensure that recognizes your phone.?*
Fastboot flash boot boot.img and pressing enter.
Fastboot flash system system.img and pressing enter this takes more time.
For end ; fastboot reboot.

Problem after root attempt

Hello,
I tried to root my P8 Lite, which is something I've already done on a lot of other smartphones. So I first unlocked my bootloader, then I tried to follow a guide to root it. Everything was going smooth, but when I hit enter for the last time into the command line (at this point of the process, it just installed superSU) my phone rebootd and stucked on the huawei logo. After 20mn I decided it was enough, I unplugged it and hard rebooted it, but still stuck on huawei logo.
Since this, I wasn't able to reboot my phone, nor enter the fastboot/rescue mode. Now I tried on more time to enter the fastboot, and I don't know why but after a few time it showd up !
So basically my phone is now on fastboot mode, unlocked, and I come here to seek answers about the method to flash it and start again with a fresh android. I don't even know where to find the correct rom to flash, nor how to flash, if for instance I should use adb, etc.
If someone here is able to help me, that would be greatly appreciated.
By the way, I manually updated the phone to android 6 and EMUI 4.
Thank you a lot for enlightments.

Hello! Since you are in fastboot mode you can easily fix the issue. Just download a stock rom you wanna flash and use (you can try the new B588) and with the Huawei Update Extractor, extract the boot.img, recovery.img, cust.img, system.img from the UPDATE.APP file. Then flash these in the order i wrote them (using the fastboot command for example:
Code:
fastboot flash boot boot.img
, same thing for all of these just change the file names). That is how i fixed my last 2-3 bootloops. I would suggest looking here first though: https://forum.xda-developers.com/p8lite/general/mega-thread-root-unbricking-updating-t3400994 on Chapter 4. Hope this helps and good luck

Hi,
Thank you for your answer.
Problem is now, my phone ran out of bttery so not in fastboot mode anymore and I just can't figure out how to go back in fastboot anymore.
I tried to power on the phone while pressing vol up, wait for the huawei logo and wait for ten more seconds, nothing except a black screen. I tried vol down, both vol up and down, still nothing. Thing is, yesterday I don't even know how I managed to enter fastboot, I just tried, didn't work, so I put my phone on the bed, and ten minuts later I realized it was on fastboot mode. Informatics huh.
If you have any idea on how to go back in fastboot mode, I tried using adb, but it needs the phone to reach systm to be able to reboot.
By the way you talked about a specific rom, where can I find this one ?
Thank you again for your time.
EDIT : Ok I managed to reach fastboot, what I did was to plug it on my laptop, powered off, then pressed vol down and power on, and it worked. Informatics has its reasons...
Still interested into the rom ou talked. I'll try to find it on my own though. But if you got a link, I would be happy to download it.
EDIT2 : Ok I tried to flash, everything went good, but my huawei is still in its bootloop. I extracted the B588 rom, but there was way more than 4 img files. I still flashed only the four you and the link you gave me told me, but maybe I need to flash more than these 4 ?

Try this https://forum.xda-developers.com/p8lite/general/mega-thread-root-unbricking-updating-t3400994 <-- follow the " Bootloop/Softbrick" method if you cannot install the latest firmware directly. You may need to flash original recovery first too. Any recovery version will do they are all the same, find the how too under the "install TWRP" section, but basically it goes "enter fastboot, type fastboot flash recovery recovery.img" while you have recovery.img in the same directory.
[edit]
Also, if you are on MM you should not be using a batch file to root. Once you have TWRP installed, you need to flash 2 zips via TWRP. They can also be found in the mega thread.

yodaofborg said:
Try this https://forum.xda-developers.com/p8lite/general/mega-thread-root-unbricking-updating-t3400994 <-- follow the " Bootloop/Softbrick" method if you cannot install the latest firmware directly. You may need to flash original recovery first too. Any recovery version will do they are all the same, find the how too under the "install TWRP" section, but basically it goes "enter fastboot, type fastboot flash recovery recovery.img" while you have recovery.img in the same directory.
[edit]
Also, if you are on MM you should not be using a batch file to root. Once you have TWRP installed, you need to flash 2 zips via TWRP. They can also be found in the mega thread.
Click to expand...
Click to collapse
Single stable SuperSu v2.76 also works for builds less than b580.. For builds greater than that, use 2 zips method

Well, it obviously didn't

Soft-bricked P9 Lite (VNS-L21)

Good day everyone!
My fellow housemate managed to soft-brick his device and now im trying to think of a fix.
The device used to have Android 7.0 installed (EMUI 5.0). Then he installed TWRP + some custom 6.0 based rom, which resulted in a soft brick.
What i've tried so far:
1. Tried multiple update.app packages (C432B170 and C432B130 SHOULD be the ones i need, since the device is european). Update always fails with message "Incompatibility with current version. Please download the correct package".
2. Extracted BOOT.img, RECOVERY.img, SYSTEM.img and CUST.img and tried flashing them with fastboot. SYSTEM.img fails with message FAILED (remote: sparse flash write failure), CUST.img fails with some error connected with partitions.
3. Tried the downgrade package from Nougat to Marshmallow. Update.app still doesnt work with the same error as mentioned earlier, however, SYSTEM.img flashed via fastboot this time, but with no success, system still only boots in eRecovery and fastboot modes.
4. Tried installing multiple TWRP recoveries, none of them seem to work. Device just wont boot in recovery mode.
Any ideas?
Best regards,
Vlad

shxtov said:
Good day everyone!
My fellow housemate managed to soft-brick his device and now im trying to think of a fix.
The device used to have Android 7.0 installed (EMUI 5.0). Then he installed TWRP + some custom 6.0 based rom, which resulted in a soft brick.
What i've tried so far:
1. Tried multiple update.app packages (C432B170 and C432B130 SHOULD be the ones i need, since the device is european). Update always fails with message "Incompatibility with current version. Please download the correct package".
2. Extracted BOOT.img, RECOVERY.img, SYSTEM.img and CUST.img and tried flashing them with fastboot. SYSTEM.img fails with message FAILED (remote: sparse flash write failure), CUST.img fails with some error connected with partitions.
3. Tried the downgrade package from Nougat to Marshmallow. Update.app still doesnt work with the same error as mentioned earlier, however, SYSTEM.img flashed via fastboot this time, but with no success, system still only boots in eRecovery and fastboot modes.
4. Tried installing multiple TWRP recoveries, none of them seem to work. Device just wont boot in recovery mode.
Any ideas?
Best regards,
Vlad
Click to expand...
Click to collapse
I had the exact same problem! And I found a fix. Boot into the dload method of updating ( make sure it will give you an error, so don't have an SD card in ) then when it fails reboot. And as soon as it starts rebooting hold volume up, then it should take you to the stock recovery, then just wipe and it should be working! All the best

vdp1nnab said:
I had the exact same problem! And I found a fix. Boot into the dload method of updating ( make sure it will give you an error, so don't have an SD card in ) then when it fails reboot. And as soon as it starts rebooting hold volume up, then it should take you to the stock recovery, then just wipe and it should be working! All the best
Click to expand...
Click to collapse
Booted into Huawei eRecovery and it doesnt give me an option to wipe anything, just "download latest version and recovery" via Wi-Fi, which, unfortunately, fails.

shxtov said:
Booted into Huawei eRecovery and it doesnt give me an option to wipe anything, just "download latest version and recovery" via Wi-Fi, which, unfortunately, fails.
Click to expand...
Click to collapse
Okay. Try again. This time go into e recovery, then reboot and the second you touch that reboot button you hold volume up. Also one question. Can u boot into fastboot and ADB recognises your device ?

vdp1nnab said:
Okay. Try again. This time go into e recovery, then reboot and the second you touch that reboot button you hold volume up. Also one question. Can u boot into fastboot and ADB recognises your device ?
Click to expand...
Click to collapse
Nope, can't get into recovery, at all. Just keeps rebooting.
Yes, i can get into fastboot mode and fastboot recognizes the device.

shxtov said:
Nope, can't get into recovery, at all. Just keeps rebooting.
Yes, i can get into fastboot mode and fastboot recognizes the device.
Click to expand...
Click to collapse
Okay that helps a huge load. What you need to do is flash the nougat ROM again. You need to put the rom files into the root of ADB install location (program files/ Minimal ADB and Fastboot) in zip format. If I'm not mistaken you have update.zip and vnsXXX_Full_data (or something similar).
Then flash the firmware using this command once your connected in fastboot. I'm not sure the command. But I did some googling and can't find a solid answer. I remember doing it but I don't remember the command line.

Soft Bricked PRA-LX1 (I guess? :D)

Alright here goes another post from another stupid user who did things without understanding
I know there are hundreds of other threats with the same question,I tried to check them but they are damn many and I am confused. I hope no moderator gets angry at me.
I have PRA-LX1 which had EMUI 8 working fine. and then I decided that I am too young to have an old Android and decided to go for LineageOS 17.1 from DarkJoker360. After couple of unsuccessful attempts and some minor things I ave a phone that goes into fastboot, but not TWRP. keeps bootlooping (I tried a stock recovery for oreo and then was able to shut it down when it prompted eRecovery page, otherwise it kept looping). Bootloader unlocked. (I was able to get so many different TWRPs to work on the phone just few hours ago, and I guess I did not do anything that bad either. )
I saw these posts about getting the boot.img and other images from some Huawei Firmware finder, but not sure how to get them and I am not sure how can I check the exact model of the phone (I guess it is PRA-LX1xxxxxx)
Sorry if I am not giving enough info, I would appreciate if you ask

Resolved. I am not sure what was the issue, but I did followings (writing down just in case this will be helpful).
PRA-LX1 c464. Bootloader unlocked. I was not able to get into TWRP. I was able to get into fastboot. eRecovery from Huawei was not doing anything (cannot get info from server it said).
Then I downloaded the FullOTA-MF
dload method was getting interrupted after 5%.
Then I extracted System.img kernel.img, recovery_ramdis.img and ramdiks.img. and flashed these in order.
System – fastboot flash system SYSTEM.IMG
Ramdisk – fastboot flash ramdisk RAMDISK.IMG
Kernel – fastboot flash kernel KERNEL.IMG
Recovery – fastboot flash recovery_ramdisk RECOVERY_RAMDIS.IMG
Then at reboot it was getting stuck at 0% loading (Warning To avoid system error please do not press and hold the power button) on some EMUI page. Waited for half an hour and rebooted. again stuck. went into bootloader and flashed a TWRP. this time I get into TWRP.
From there dload method to go back to EMUI and installed LineageOS afterwards.