P20 Pro CLT-L29 Bricked during reset - Huawei P20 Pro Questions & Answers

Hi,
i got a Huawei P20Pro CLT-L29 with broken screen over ebay.
I bought a new LCD and fixed it, then it turned on and nearly everything worked except it had a FRP lock on it.
I thougt i am smart (HUAWEI NOOB) and i could unlock it, so i read some how-to guides and went to safe mode to factory reset.
After that the Phone never booted again.
Endless bootloop.
I can go to fastboot mode but i canĀ“t flash anything because the bootloader is locked and also FRP is on.
If i turn it on it vibrates and Windows recognizes something but then it restarts.
Is there anyone who can help me, please.
I got a lot of sleepless nights trying to fix this but i always get the same result.
I even tried DC Unlocker, unlocked bootloader via testpoint, but the problem there is it wont boot to upgrade mode, keeps failing there everytime..
Build Number :CLT.L29 8.0.0.106 (C432)

Related

Stuck at bootloop, locked bootloader, no USB debugging

EDIT
After 8 hours of bootloop, I simply turned the phone off, attached it the charger, and when it reached 100% battery I tried to turn it on. And it did it. It simply booted in less than 20 seconds. My brain exploded.Thank you anyway
Hi everybody,
I received a Xiaomi Mi5 from GearBest and found out it had been flashed with a custom ROM.
I read on MIUI forums that sometimes MiPCSuite can update the ROM properly, and decided to give it a try. As soon as I connected the phone to my laptop, MiPCSuite found an update (last China stable), downloaded and installed it.
Now I'm on bootloop, and don't really know how to fix it.
Since MiPCSuite did a reset, USB debug is OFF.
English MiPCSuite doesn't recognise phone anymore.
Chinise MiPCSuite recognises it, but I tried flashing some OTA China dev ROMs and the latest full China stable without success.
I have access to fastboot and recovery mode, but bootloader is locked.
I'm waiting for the unlock code, but I read that to unlock it I should login with my Mi Account into the phone and activate USB debug: I can't do either, of course, since I cannot boot.
Can anyone confirm that I won't be able to unlock the bootloader?
Since MiPCSuite has flashed the latest China stable, EDL mode should be disabled.
Should I try to boot in EDL mode? What happens if anything goes wrong?
Official Mi Flash Tool doesn't even let me try anything since I'm still waiting for the unlock confirmation SMS.
MiFlash is unusable since I can't flash fastboot ROMs without unlocking the bootloader.
Should I try the deep flash cable? What happens if anything goes wrong?
I hope someone can help me take a decision... it's not the first time I brick a phone, but it's first time I have so much problems restoring it.
Thank you anyway
Click to expand...
Click to collapse

Bricked P9 FRP locked, Phone / Bootloader Locked HELP!

I've been trying to contact huawei for a couple of days, trying to get my p9 back to alive.
well let me explain how this is happened :
couple of days ago, I was on nougat firmware and few games that I play isn't optimized for nougat yet so I planned to downgrade to marshmallow via rollback and update.app package. First I install the rollback package via internal storage and its success, second, I rebooted phone and insert my sdcard to install update.app from official huawei and its say success then it rebooted itself after 100% flash. Then I realized that my phone isn't came to boot, I try to reboot again but no success getting to boot screen. I try to reflash the update.app thru dload mode but dload mode isn't boot anymore. trying to boot into erecovery but it never show up. Think I'm broke my recovery at this state. Then I try to boot into fastboot mode and its success. Unfortunately, It says frp locked and phone locked ( yes I formatted my phone on nougat earlier thinking that the cause of lag is maybe I dirty update it without clearing data etc like flashing firmware and I forgot to turn frp off )
This phone is mine and not stolen. I can provide you my google data and prove it with ss on my google account manager that this phone is already been bind to that account.
I wanna know how to turn frp lock off?
Trying to fastboot frp-erase but didn't solve my problem
Trying to fastboot frp-unlock but it ask me for a password (trying to insert bootloader unlock code but it says password matching failed)
Trying to flash anything but it says remote: command not allowed since my bootloader locked again due upgrading to nougat.
And, I dont want to pay for dc-phoenix since I want to learn myself how to do it from you guys
Thank you!
You won't learn anything, because your phone is ****ed up In real mess and you must pray even to recover it with DC phoenix ... and yes, you must pay them
amonev said:
You won't learn anything, because your phone is ****ed up In real mess and you must pray even to recover it with DC phoenix ... and yes, you must pay them
Click to expand...
Click to collapse
you mean like there's nothing I can't do to recover this?
anyone please? I really need help here
When FRP is locked, we can not help you. Use DC Phoenix for repair.
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial

Softbrick P9 Plus

Hello folks,
so a friend of mine is a complete noob and have this problem with his p9 plus.
The phone keeps rebooting itself in an endless loop, i can't access recovery and only when plugged in to the PC i can access fast-boot.
Phone is locked, FRP Lock.
With getvar command i managed to get this info:
rescue_phoneinfo: VIE-L09C113B170
seems that there is no full zip of this rom anywhere just partial ota (found those with firmware finder) but even with that when i try to flash recovery i get command not allowed.
On the fastboot screen of the phone i have this reboot reason AP_S_PANIC
anyone knows a how to get the phone out of this? (i was thinking that maybe unlocking the bootloader could be of any use, but in the request page it's needed the Product_ID and i don't have it. (can't *#*#1357946#*#*)
I don't know if it does work in a locked bootloader.
I have my P9+ for a week and maybe if you download a firmware compatible with your version and try to 'hard' update the phone, using a SD card with a update file on a dload folder and restarting the phone pressing VolUp + VolDown +Pwr, you can restore your friend's phone.
I'm sorry if I didn't help, I am myself stucked trying to rollback my version to MM and have the NFC and the Bluetooth working again...
myself also got this problem..please anyone..

Bricked device (seeking advice)

Hi there,
This is for EVA-L09.
How this came about:
I was relocking my bootloader when it failed(fastboot changed to locked though) however, continued onto reboot anyway. It didnt reach the EMUI lowlevel wipe stage
Device info:
EVA-L09
Nougat
C432 B391 (If I remember correctly)
FRP unlocked
bootloader ???
phone functionality:
whenever it turns on I just get huawei logo regardless of key combos
seemingly unable to fastboot
Unable to force update (Vol +&- & Power)
Unable to recovery mode
I was wondering if anyone has had a similar situation or any insight how to fix this.
Most solutions I've found require fastboot but once my device starts charging the logo appears then only restarting by holding power is available.
I expect the cause to be the issue relocking the bootloader.
thanks for any insight.
Edit/Notes: I have sucessfully unbricked this device before via the dload method however unable to. (rollback to 4.1EMUI and 6.0 then changed to C432 B168 and upgraded from there)
I do have a DC Pheonix account on standby if I ever can fastboot
LuxrayElite said:
Hi there,
This is for EVA-L09.
How this came about:
I was relocking my bootloader when it failed(fastboot changed to locked though) however, continued onto reboot anyway. It didnt reach the EMUI lowlevel wipe stage
Device info:
EVA-L09
Nougat
C432 B391 (If I remember correctly)
FRP unlocked
bootloader ???
phone functionality:
whenever it turns on I just get huawei logo regardless of key combos
seemingly unable to fastboot
Unable to force update (Vol +&- & Power)
Unable to recovery mode
I was wondering if anyone has had a similar situation or any insight how to fix this.
Most solutions I've found require fastboot but once my device starts charging the logo appears then only restarting by holding power is available.
I expect the cause to be the issue relocking the bootloader.
thanks for any insight.
Edit/Notes: I have sucessfully unbricked this device before via the dload method however unable to. (rollback to 4.1EMUI and 6.0 then changed to C432 B168 and upgraded from there)
I do have a DC Pheonix account on standby if I ever can fastboot
Click to expand...
Click to collapse
As you say, you cannot go to Fastboot even by power off, Vol- and connecting USB?
It doesn't help now but when you were relocking (btw why, but you may had your reasons for), did you have clean stock without root and TWRP (since relocking ininitates full reset)?
TG, I never used DC Phoenix but maybe you can unbrick by Method 3 (seems, it does not rely on Fastboot?):
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
sometimes people do mistake trying to boot in fastboot while are not conected to pc, connect phone and pc with usb, then try to force restart holding power more than 30 sec together with vol -. If cable are not connected, you never will boot in fastboot and find a way to test if your usb cable working properly!! i bought one non-huawei cable, it was new, but with that cable i wasnt able to boot in fastboot, duno why, so there need to be original cable for this! (maybe i bought foulty cable, duno , with non-huawi cable i can easy charge, transfer data to pc, but when tried to use adb comands, sometime it worked, sometime not, but with original cable got no problems at all)
Thank you for both of your comments. I have now successfully recovered via DC-Phoenix.
I was just getting unlucky with holding down the Vol - key it seems as I eventually got into fastboot which then allowed DC-PHOENIX to solve the problem.
The Huawei wire which I bought is third party and I have noticed connection dropping which may have caused me to not enter fastboot as it had unconnected(but not visibly). This happens during normal system boot as well when I'm trying to use MTP.

Huawei P10 XLOADER2 un-brick (NOT rollback)

Since this Huawei P10 never received a single OTA update (from Carphone Warehouse, SIM free) and was stuck on Nougat I decided to go custom ROM route. This was a HUGE mistake but I did learn a lot which may be helpful to others.
The situation goes like this:
Tried to flash TWRP, failed, tried to flash system (openkirin pie) also failed. Nothing would work at all.
Tried to re-lock bootloader thinking it would make everything stock again automagically (not sure why I thought it does on some devices).
Then got into bootloop with no access to fastboot as bootloader HAD to force factory reset but couldn't (broken recovery). After some time you'd get some white EMUI screen in Chinese where all the options are broken.
Flashed the latest version I could find using DC-Phoenix with flashpoint, this is where I really ****ed up as this firmware had XLOADER2.
Phone is alive!!!! but no IMEI and NCK lock. HCU tool, DC unlocker, etc, nothing works with XLOADER2 for fixing the IMEI or NCK lock.
Tried to downgrade to Nougat. Complete brick, back into testpoint mode.....
Testpoint mode cannot even flash XLOADER1 anymore!! I did still manage to get the phone working again, but now it is a tablet .
So in short:
YOU STILL CANNOT GO BACK TO XLOADER1 FROM XLOADER2 - EVEN if you disassemble and use testpoint mode! I have NO idea what Huawei have done to prevent this but its something evil. So if you are at this point with no IMEI then you will never have a working phone ever again. Tablet yes if you are lucky but NOT phone.
So the process (not detailed, requires Google) to make your bricked XLOADER2 Huawei P10 a tablet rather than a brick:
You'll need DC-phoenix and maybe a 3-day 15 credit license but don't by the license until it tells you to otherwise it might be a waste of money if you have problems with disassembly for example
Download HiSuite to make sure you have all the required drivers
Disassemble your phone, plug USB into the computer, ground the testpoint pin and hold the power button
You should see a HUAWEI USB COM device in device manager
Using DC phoenix you need to select a booloader mode, try all Kirin 960 bootloaders until one works. You can also select an OEMINFO update at this point too if you want
Your phone is now in some half working fastboot mode. Leave it plugged in!
Using firmware finder, find the "379" firmware (the latest one they have for VTR-Lx9) where x is 0 or 2.
Using firmware extrator, extract: xloader, fastboot, teeos, ptable (hisi_gpt or something like that), vbmeta, kernel (ramdisk)
Using fastboot manually flash all of these images, kernel may fail but its OK if it does
Now fastboot reboot, your phone will brick again. Put it back into testpoint mode
Using DC-phoenix to select a bootloader (again) use the same Kirin 960 one as what worked for you before
Use DC phoenix to flash the "379" firmware and customisation and run the update.
If ANY steps fail, repeat again to fastboot reboot, testpoint mode, bootloader from DC phoenix, then run the update.
If all partitions flash OK and it asks you to go into update mode, with the USB connected, hold vol-, vol+ and power until 3 seconds AFTER you feel the phone vibrate
Eventually you should see some more COM ports appear in device manager (PCUI and some other random one). If you can see your screen (doubtful as it will be face down) you will see update mode 5%
Again, update with DC-phoenix (same 379 firmware and customisation you did before)
Your brick should now be a tablet. Bootloader should be unlocked if it was unlocked at the start of the process.
So typing that out and given I don't have time or the load of files I had downloaded to do this there is not much detail so if you do this you need to be someone who knows what they are doing really. I don't expect anyone to actually be stupid enough to follow this.
I just don't understand what XLOADER2 did (must be at a very low hardware/bios level) so completely lock the device down even in testpoint mode. I'd imagine even their repair centres would not be possible to repair IMEI now and just throw motherboard into the bin.
https://forum.xda-developers.com/p10/how-to/unbrick-p10-vtr-l09-vtr-l29-unbrick-t3916694
Anyone in this boat and has lost IMEI this thread is a must read!

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