P20 pro bricked!

[Cygnust]

New update, now they tell me that it's a motherboard issue and they're gonna change it.
I guess my imei will change also and I won't be able to unlock ?

 

[forever_lol]

New update, now they tell me that it's a motherboard issue and they're gonna change it.
I guess my imei will change also and I won't be able to unlock ?

Yes. NEw motherboard = new IMEI.
After my motherboard was replaced (due to xloader brick caused by failed rollback from 195) my imei and S/N have been changed too.

 

[fatguy666]

New update, now they tell me that it's a motherboard issue and they're gonna change it.
I guess my imei will change also and I won't be able to unlock ?

Sorry for quoting an old post but how long does the process of sending the phone back and getting a working phone take? Not sure how much longer I can take using my old Z2

I've contacted Huawei and they asked for all my info before sending the jiffy bag, unfortunately I'd deleted the invoice email from when I bought the phone so had to wait for the company I purchased from to POST me one!

 

[Cygnust]

Sorry for quoting an old post but how long does the process of sending the phone back and getting a working phone take? Not sure how much longer I can take using my old Z2

I've contacted Huawei and they asked for all my info before sending the jiffy bag, unfortunately I'd deleted the invoice email from when I bought the phone so had to wait for the company I purchased from to POST me one!

it was a 15 min walk from my office.
They kept it for 3 days

 

[MichelKastro]

My p20 pro was in Huawei usb 1.0 mode. With the dc-unlocker tool I got into fastboot and retrieved my phone.

 

[Grumps]

My p20 pro was in Huawei usb 1.0 mode. With the dc-unlocker tool I got into fastboot and retrieved my phone.

Did you have to do testpoint or did you fix it without doing that

 

[androidyeah...]

download firmware for your device firmware from https://www.getdroidtips.com/huawei-p20-pro-stock-firmware/ then the huawei update.app extractor tool from http://forum.xda-developers.com/attachment.php?attachmentid=3262544 open the the firmware zip and extract the update.app file from the update_sd.zip and add it too the huawei extractor tool. move the images for cashe, cust, kernel and system and add them too fastboot folder. flash each using fastboot. eg fastboot flash cust cust.img same for each image. whaen finished fastboot flash erase userdata and boot system. this worked on my clt-l29 c432 emui 9.0 bootlooped with no access to either recovery.

Oh My God, Thank you!! I have spent the day trying to fix my phone, even bought a funkyhuawei pass , that did nothing for me!! But I flashed cache, cust, kernel and system. The delete userddata didnt work so i just rebooted and my phone has booted up!!

 

[Me4tGrind3r]

download firmware for your device firmware from https://www.getdroidtips.com/huawei-p20-pro-stock-firmware/ then the huawei update.app extractor tool from http://forum.xda-developers.com/attachment.php?attachmentid=3262544 open the the firmware zip and extract the update.app file from the update_sd.zip and add it too the huawei extractor tool. move the images for cashe, cust, kernel and system and add them too fastboot folder. flash each using fastboot. eg fastboot flash cust cust.img same for each image. whaen finished fastboot flash erase userdata and boot system. this worked on my clt-l29 c432 emui 9.0 bootlooped with no access to either recovery.

Oh my!!! That worked for me. Thank you so much. Took me some days but its running again.

 

[bialabs]

p20 pro no UPGRADE mode after flash bootloader+oeminfo with dc-phoenix

hello, i have flashed bootloader+oeminfo of my p20 pro (demo) with dc phoenix to convert to eu but then the device doesn't power on and no upgrade mode.
Now i get only USB COM 1.0 and fastboot (if i reflash bootloader+oeminfo).
You think i can fix or my device is dead?

thank you

 

[jerimiepalmer81]

hello, i have flashed bootloader+oeminfo of my p20 pro (demo) with dc phoenix to convert to eu but then the device doesn't power on and no upgrade mode.
Now i get only USB COM 1.0 and fastboot (if i reflash bootloader+oeminfo).
You think i can fix or my device is dead?

thank you

From usb com 1.0 flash bootloader using DC phoenix. (If multiple options for your device, try each of your device type until one works.) Then flash oem info using DC phoenix. Reboot bootloader, flash system.img, userdata.img , kernel.img, cache.img, cust.img and recovery_ramdis.img of last ROM installed on device.

 

[Deleted member 6703605]

Hi, I'm having same Brick Problem.

When I wanted to enable OEM Unlock, it was grayed out. When I did a full wipe on TWRP, my phone rebooted without finishing the process so i think i'm f****d. Now on bootloader I have:

PHONE Unlocked on red
FRP Lock on green

When I try to flash firmware images, the error says: FAILED (remote: Command not allowed)
I can't flash either recovery, system nor TWRP.
And Also I can't boot either System, Recovery nor e-recovery, it keeps on booting device in yellow

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get-model
...
FAILED (remote: Command not allowed)
finished. total time: 0.012s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get-product-model
...
(bootloader) CLT-L29
OKAY [ 0.009s]
finished. total time: 0.010s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get-build-number
...
(bootloader) :CLT-LGRP2-OVS 9.0.0.163
OKAY [ 0.009s]
finished. total time: 0.010s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot getvar vendorcountry
vendorcountry: hw/eu
finished. total time: 0.009s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot getvar rescue_enter_recovery
getvar:rescue_enter_recovery FAILED (remote: FAIL:need all image flashed!)
finished. total time: 0.024s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem oeminforead-SYSTEM_VERSION
...
(bootloader) :CLT-L29 8.1.0.156(C432)
OKAY [ 0.011s]
finished. total time: 0.011s

I tried OTG Mode but with NTFS flash, so I'll try now with exFAT flash, so that's my last test to do. Any clues?

 

[jerimiepalmer81]

Hi, I'm having same Brick Problem.

When I wanted to enable OEM Unlock, it was grayed out. When I did a full wipe on TWRP, my phone rebooted without finishing the process so i think i'm f****d. Now on bootloader I have:

PHONE Unlocked on red
FRP Lock on green

When I try to flash firmware images, the error says: FAILED (remote: Command not allowed)
I can't flash either recovery, system nor TWRP.
And Also I can't boot either System, Recovery nor e-recovery, it keeps on booting device in yellow

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get-model
...
FAILED (remote: Command not allowed)
finished. total time: 0.012s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get-product-model
...
(bootloader) CLT-L29
OKAY [ 0.009s]
finished. total time: 0.010s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get-build-number
...
(bootloader) :CLT-LGRP2-OVS 9.0.0.163
OKAY [ 0.009s]
finished. total time: 0.010s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot getvar vendorcountry
vendorcountry: hw/eu
finished. total time: 0.009s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot getvar rescue_enter_recovery
getvar:rescue_enter_recovery FAILED (remote: FAIL:need all image flashed!)
finished. total time: 0.024s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem oeminforead-SYSTEM_VERSION
...
(bootloader) :CLT-L29 8.1.0.156(C432)
OKAY [ 0.011s]
finished. total time: 0.011s

I tried OTG Mode but with NTFS flash, so I'll try now with exFAT flash, so that's my last test to do. Any clues?

You need to format/erase partitions. Fastboot format userdata fatsboot format system fatsboot erase cust fastboot erase cache fastboot erase kernel fastboot. Then flash android version equal or greater then the version installed at time of brick. Then begin by flashing system then so on and so forth. For the record twrp wipe data will soft brick every time.

---------- Post added at 02:01 PM ---------- Previous post was at 01:51 PM ----------

You need to format/erase partitions. Fastboot format userdata fatsboot format system fatsboot erase cust fastboot erase cache fastboot erase kernel fastboot. Then flash android version equal or greater then the version installed at time of brick. Then begin by flashing system then so on and so forth. For the record twrp wipe data will soft brick every time.

Forgive the horrible spelling.

 

[Deleted member 6703605]

You need to format/erase partitions. Fastboot format userdata fatsboot format system fatsboot erase cust fastboot erase cache fastboot erase kernel fastboot. Then flash android version equal or greater then the version installed at time of brick. Then begin by flashing system then so on and so forth. For the record twrp wipe data will soft brick every time.

---------- Post added at 02:01 PM ---------- Previous post was at 01:51 PM ----------



Forgive the horrible spelling.

Hey, thank you for the answer. I tried what you said but as FRP is Locked (i think is because of this) when I try to format it says: FAILED (remote: Command not allowed)

Also if I try to reinstall from OTG, it doesn't even detect that there is a OTG update so it tries to boot with a bootloop

 

[chrissyyyw]

Hi all,

I have a P20 Pro that is stuck in fastboot mode with a black screen.

I tried to roll back to Oreo from .282. I flashed TWRP, the firmware install failed. I had the choice of factory reset or recovery mode and I went with recovery. Not had a display since.

Phone is responding to my laptop, I can reboot it etc using ToolAllInOne.

Can I rescue it?

 

[jerimiepalmer81]

Yes you can with test point. Removing the back glass is easier then I thought. Heat oven to 250 I put a small town around the phone and put in a bread loaf pan in the over for approx 20 min. Using pieces of a cut up pop can I slowly cut the glue holding the glass on. It honestly surprised me how easy it came with the heat. I had bought a replacement from Amazon that I never needed. You will need to pay for credits for DC phoenix, follow instructions provided for repair. https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial. Use the "flash as empty board" method. Then flash whatever ROM you need to move forward.

 

[Deleted member 6703605]

Yes you can with test point. Removing the back glass is easier then I thought. Heat oven to 250 I put a small town around the phone and put in a bread loaf pan in the over for approx 20 min. Using pieces of a cut up pop can I slowly cut the glue holding the glass on. It honestly surprised me how easy it came with the heat. I had bought a replacement from Amazon that I never needed. You will need to pay for credits for DC phoenix, follow instructions provided for repair. https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial. Use the "flash as empty board" method. Then flash whatever ROM you need to move forward.

Can I fix my P20 pro brick with DC Phoenix? Even if I can't format partitions as FRP is Locked?

 

[Boooom12345]

Thanks to QuazIqbal, my Huawei P20 Pro (CLT-L29) is now working again!!

THANK you so much for posting on xda-developers @QuazIqbal. Your post was the only one I found after days of struggling to get my phone working again.

THANK YOU, THANK YOU, THANK YOU for all of those who take the time to post their valuable advise on these forums.

Here is my Story :

My Huawei P20 Pro (CLT-L29) Phone was bootloader unlocked and rooted, and I was planning on doing a swap with a friend for a Nokia 9 Pureview.
I bought the phone new a year ago and it was a week old and I decided to unlocked my bootloader the day before Huawei took away the unlock option on their website.
I unlocked the bootloader, installed TWRP and rooted the phone with no issues. I rocked 8.1.0.128a(C185) Firmware Android 8.1.0 EMUI 8.1.0 for a year. I was not interested in updates etc, as the phone ran fine and I ran Droidwall and AD Blocker to manage my own privacy and security on the phone.


My Friend did not want a modified phone, so I did the following :

- Downloaded the same ROM using Huawei Firmeware finder on my phone.
- I Flashed a the ROM using the HuRUpdater method and allowed it to install the stock recovery.
- No issues there and the phone restarted fine after the Firmware update.
- I then booted the phone into recovery, plugged into my PC and did a fastboot relock (fastboot oem relock <my relock code>).
- I then did a "fastboot reboot" and the phone restarted.

Now this is where all my sleepless nights started :

From there, the phone kept on rebooting into recovery.
I tried factory reset, wiping Dalvik cache etc and the phone would just restart to recovery.

I would boot the phone into recovery, and found that fastboot was no longer working on the phone.

"fastboot devices" nor "adb devices" would find the phone and I was now unable to issue any commands to the phone, or not even able to push a ROM using fastboot. Obviously it was not a driver issue as fastboot had been working 5 minutes before on my laptop (Win 10), but I pulled out an old laptop of mine running windows 7, installed the drivers and tried fastboot, but the phone would not respond to any fastboot or adb requests.

I tried the erecovery option. I would connect to my WIFI, and then when it checked for a ROM, I would get a "Getting package info failed". I thought it could be my WIFI, so I tried on a friends and works WIFI and the same error occurred, so I deduced that the phone was not responding to the erecovery requests on what model/version it was on.

I found QuazIqbal post (https://forum.xda-developers.com/huawei-p20-pro/help/p20-pro-bricked-t3868085?nocache=1) POST #4 and followed his instructions exactly. The only difference was that in my download, my subfolder was named : "CLT-L29_hw_meafnaf" I left the folder name as is and extracted the "update_sd_CLT-L29_hw_meafnaf.zip" inside the "CLT-L29_hw_meafnaf" folder.

I did the power on with both volume up and down keys pressed and the install started : Verified OK : Installed OK and restarted OK into Android!!!

Luckily I have my phone back, but my friend pulled away from the swap after he heard of all my troubles with the phone. I don't blame him though.

So I can confirm that the OTG-USB method does work to get your phone back to life.

Chris

 

[kessaras]

Thanks to QuazIqbal, my Huawei P20 Pro (CLT-L29) is now working again!!

THANK you so much for posting on xda-developers @QuazIqbal. Your post was the only one I found after days of struggling to get my phone working again.

THANK YOU, THANK YOU, THANK YOU for all of those who take the time to post their valuable advise on these forums.

Here is my Story :

My Huawei P20 Pro (CLT-L29) Phone was bootloader unlocked and rooted, and I was planning on doing a swap with a friend for a Nokia 9 Pureview.
I bought the phone new a year ago and it was a week old and I decided to unlocked my bootloader the day before Huawei took away the unlock option on their website.
I unlocked the bootloader, installed TWRP and rooted the phone with no issues. I rocked 8.1.0.128a(C185) Firmware Android 8.1.0 EMUI 8.1.0 for a year. I was not interested in updates etc, as the phone ran fine and I ran Droidwall and AD Blocker to manage my own privacy and security on the phone.


My Friend did not want a modified phone, so I did the following :

- Downloaded the same ROM using Huawei Firmeware finder on my phone.
- I Flashed a the ROM using the HuRUpdater method and allowed it to install the stock recovery.
- No issues there and the phone restarted fine after the Firmware update.
- I then booted the phone into recovery, plugged into my PC and did a fastboot relock (fastboot oem relock <my relock code>).
- I then did a "fastboot reboot" and the phone restarted.

Now this is where all my sleepless nights started :

From there, the phone kept on rebooting into recovery.
I tried factory reset, wiping Dalvik cache etc and the phone would just restart to recovery.

I would boot the phone into recovery, and found that fastboot was no longer working on the phone.

"fastboot devices" nor "adb devices" would find the phone and I was now unable to issue any commands to the phone, or not even able to push a ROM using fastboot. Obviously it was not a driver issue as fastboot had been working 5 minutes before on my laptop (Win 10), but I pulled out an old laptop of mine running windows 7, installed the drivers and tried fastboot, but the phone would not respond to any fastboot or adb requests.

I tried the erecovery option. I would connect to my WIFI, and then when it checked for a ROM, I would get a "Getting package info failed". I thought it could be my WIFI, so I tried on a friends and works WIFI and the same error occurred, so I deduced that the phone was not responding to the erecovery requests on what model/version it was on.

I found QuazIqbal post (https://forum.xda-developers.com/huawei-p20-pro/help/p20-pro-bricked-t3868085?nocache=1) POST #4 and followed his instructions exactly. The only difference was that in my download, my subfolder was named : "CLT-L29_hw_meafnaf" I left the folder name as is and extracted the "update_sd_CLT-L29_hw_meafnaf.zip" inside the "CLT-L29_hw_meafnaf" folder.

I did the power on with both volume up and down keys pressed and the install started : Verified OK : Installed OK and restarted OK into Android!!!

Luckily I have my phone back, but my friend pulled away from the swap after he heard of all my troubles with the phone. I don't blame him though.

So I can confirm that the OTG-USB method does work to get your phone back to life.

Chris

Actually there is a guide.
If for example for clt l29 c432 you download v270
https://androidhost.ru/Uss
You will also find instructions inside.

 

[DoricSan]

Hi guys.

This is where i'm totally stuck.
This OTG method do not work for me...
I use the USB adapter from a Galaxy S8 package, I plug my exFat formated USB key with the dload folder, I hold the +&- while restarting the phone, and... nothing happen.
This is going to kill the last brain cells I have.
Any clue ?

 

[Boooom12345]

Hi guys.

This is where i'm totally stuck.
This OTG method do not work for me...
I use the USB adapter from a Galaxy S8 package, I plug my exFat formated USB key with the dload folder, I hold the +&- while restarting the phone, and... nothing happen.
This is going to kill the last brain cells I have.
Any clue ?

I used a USB Micro B (Micro-USB) to USB Type C adapter as well as a USB-OTB cable (With a Micro-USB end hence I needed the adapter)
When my phone was operationan, I often used this cable and adabpter to transfer files to and from my P20 Pro, so I knew with 100% certainty that this worked on my Phone.

I held down the vol up and down keys and then held down the power key. Once I saw the Huawei Logo, I let go of the power key but continued to hold down the vol up and down keys until the recovery screen loaded.

I hope this helps....