P20 pro bricked!

[DoricSan]

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....

Thanks for your reply mate.
That's exactly what I did.
3 possibilities:
- My 3 USB keys are broken (can't do anything except buy a new one)
- My dload folder is not valid (already checked many many times)
- This recovery method is broken on my phone (then I'm screwed)

 

[Zarapho]

sorry for re-opening this post.

recently my o20 pro bricked during a emui OTA update.

CLT L29 C432
BOOTLOADER UNLOCKED, FRP UNLOCKED

I have a blackscreen, over fastboot I my device is connected but I can't enter bootloader. neither over a FLASH.bat can't overwrite device because I get this error "No devices attached"

any solutions how to revive my phone? I don't have the OTG..

 

[syndicate47]

dload method works with SD_update.tag firmware

My CLT-L09 was on 9.0.0.251(C432E5) and I wanted to hard reset because battery life had gotten a lot worse. I had root via Magisk with an unlocked bootloader. I flashed the latest TWRP from their app and did a factory reset. After that I couldn't boot anymore and I could only get into fastboot, eRecovery and dload. I think I had OEM unlock turned on, but I should have removed all passwords and fingerprints because fastboot was pretty much useless because FRP lock was on.

Previously when I had soft-bricked the phone, I could recover by flashing all those partitions from something like HWOTA but with an FRP lock that was no longer an option. I spent a whole evening trying all sorts of things with eRecovery like setting DNS on the wifi router and hacking HiSuite but I'm pretty sure none of those methods work anymore.

Thankfully I came across this thread and was able to fix the phone with the method described here. It took me a while to figure out that you need firmware that has the Software\dload\SD_update.tag in it. None of the firmware on Firmware Finder seems to have that and a lot of the new ones on Android Host also do not. It seems that correct firmwares are the ones with separate folders for L09 and L29 making them quite a bit larger at 5GB, compared to the incompatible 3GB ones.

Thanks so much for all your help!

 

[zgfg]

My CLT-L09 was on 9.0.0.251(C432E5) and I wanted to hard reset because battery life had gotten a lot worse. I had root via Magisk with an unlocked bootloader. I flashed the latest TWRP from their app and did a factory reset. After that I couldn't boot anymore and I could only get into fastboot, eRecovery and dload....

Generally, since EMUI 8, TWRP does not read Data and Internal memory.
Since EMUI 9.1, due to EROFS, System is read only

Factory reset must be performed only from eRecovery:
Before that, Magisk must be uninstalled and TWRP reverted back to stock Recovery

 

[lalovzg]

It worked!

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.

Are you kidding me right now? How!?
I wasn in a state where I could ONLY access fastboot to recover the phone (yeah, maybe DC-Phoenix and stuff would have made an awesome job), the only thing that I had never tried was to "fastboot erase userdata". How does that even work?
I was thinking in buying a DC account for credits, maybe paying a service center... and in the end, what made a huge difference was the only thing I did that was different from every single previous attempt: erase userdata (which I only know its app or user data mounted in /data).
Holy molly! Thank you so much, you saved me like 30 euros.

 

[aragarm]

Hello . I have the same problem fastboot and black screen . OTG dont work .... cant format in fastboot command not allowed ....

Only test point works ?? can any1 give more details about this method ? With this method you dont need Board software ?

Any help is appreciated . I tried to go from 8.1.163 to android 9 and is bricked now ...black screen and fastboot

 

[Luis2k33-XDA]

Send it to a Huawei service centre, said to the staff that the phone got bricked updating itself, and normally they will change for free the motherboard, in case you have bootloader code it will not work more with the new imei in the new motherboard

Hello . I have the same problem fastboot and black screen . OTG dont work .... cant format in fastboot command not allowed ....

Only test point works ?? can any1 give more details about this method ? With this method you dont need Board software ?

Any help is appreciated . I tried to go from 8.1.163 to android 9 and is bricked now ...black screen and fastboot

 

[aragarm]

Send it to a Huawei service centre, said to the staff that the phone got bricked updating itself, and normally they will change for free the motherboard, in case you have bootloader code it will not work more with the new imei in the new motherboard

But if i have no warranty ?

 

[Luis2k33-XDA]

Then.. It's more difficult situation, search in the forum maybe you will find a solution, good luck

But if i have no warranty ?

 

[trangteen]

help! My P20 pro bricked BlackScreen boot loop not Recovery

 

[Piest4r]

Did it receive any water damage?
Sorry, haven't read all comments.

 

[jondoe366]

Mate 20 pro bricked...HELP !

Hi guys, looked through all the old threads on this topic and come to a brick wall ! Followed the steps to restore my mate 20 pro from the instructions but am unable to proceed as the firmware file which i have downloaded does not contain ANY folders named 'Dload' and when i search the whole file with the search icon in the corner it does not find any update_sd either what do i do im confused now...? Any help or advise would be greatly appreciated thanks in advance.

 

[klode82]

I have a P20 Pro bricked with Bootloader Locked and FRP unlocked.
The phone was a CLT-L29 C652 (DEMO), but after some issue now it is Chipset-Boston 8.1.0.001 (PR00). I cannot use dload method, I got "System update failed". I cannot use DC Phoenix nor HCU Client. I cannot got Phone in TestPoint mode (I cannot do it in hardware method).

The story: I got phone in Manufacture Mode, then I start process to enable testpoint mode with success. My phone got with BlackScreen but it still works in fastboot. So Using HCU Client I unlock bootloader. After that I use DC Phoenix to flash the C432 version of CLT-L29 8.1.0, after all work I got phone that stucks on HUAWEI animation logo. I got with surprise my phone was now a Chipset-Boston 8.1.0!

Then I tried again to return in testpoint mode, but nothing happens. I can enter in Fastboot and eRecovery.

Someone can help me? Please???

 

[krabat]

Hallo,

my CLT-L29 is bricket too, its possible boot only to test mode or fastboot (but with black screen). I`m looking for stock fw, but not sure witch version, so fastboot was show ver 12.0.0.255... see screenshot

do you someone know what`s wrong?
thank you for yours ideas.
K.
so sorry, 9.0.0.163, already known it.

 

[asadulla_]

quotation from post #4

"1) Download the correct firmware for your device according to your region from https://androidhost.ru/search.html and extract it. (Note :The downloaded firmware must be of the same build number installed or superior bcoz downgrading can hard brick your device) "

Unless You have speciall rollback firmware (like the one listed on funky that brings you back to 156) do no try to downgrade. Most likely it won't work or in worst case you'll brick your device.

Hi, I need help. My p20 pro's build number is 10 (it's not literally just 10, there are leading digits) but it's on Android 8.1, can I try to install 8.1 again in an attempt to fix the wrong build number?

 

[forever_lol]

Hi, I need help. My p20 pro's build number is 10 (it's not literally just 10, there are leading digits) but it's on Android 8.1, can I try to install 8.1 again in an attempt to fix the wrong build number?

Sorry mate, i sold my p20 pro more than 3 years ago.

 

[asadulla_]

Sorry mate, i sold my p20 pro more than 3 years ago.

Any advice from the past experience would be helpful. I'm stuck on Android 8.1 and not receiving any ota updates and i think that's related to wrong build number because I tried flashing Android 9.1 of same region but it said software installation failed.

 

[asadulla_]

I didn't find any guide. I was in fact guided by Mr. oslo83 in a telegram group https://t.me/flashing_huawei

The process is very simple. I will try to reproduce the steps I followed as under :-

1) Download the correct firmware for your device according to your region from https://androidhost.ru/search.html and extract it. (Note :The downloaded firmware must be of the same build number installed or superior bcoz downgrading can hard brick your device)

2) After extraction you will find a folder named "dload" (This is our concerned folder, pay attention!)

3) Inside the 'dload' you will find one zip file named 'update_sd', extract its content within the dload folder but keep the un-extracted zip also as it is.

4) Apart from 'update_sd.zip' you will also find two subfolders inside 'dload'.
In my case the two subfolders were '... 'update_sd_CLT-L29_hw_eu' & ''update_sd_CLT-L09_hw_eu'

5) Since my model was CLT-L29 therefore I deleted the subfolder named 'update_sd_CLT-L09_hw_eu'

6) Now rename the subfolder "update_sd_CLT-L29_hw_eu" to "CLT-L29_hw_eu" and on opening it you will find a same named zip inside. Like before extract its content within the subfolder and also keep the zip file intact'

7) That's it. Your 'dload' folder is now ready to be transferred to the USB drive for flashing.

8) Attach your OTG-USB to your device and restart your device. While restarting keep pressing Volume UP & DOWN key simultaneously. Your phone will now enter into dload mode and will start flashing after verifying firmware.

9) Bingo! you have now fully working stock rom. (Bootloader locked, FRP Unlocked, E-recovery functional again)

Note: Before doing this operation make sure your USB drive is perfectly working and exFAT formatted. You can check your drive by H2testW on windows. In my case my first USB drive was faulty and that's why dload was giving me errors.

Hi, I need your help. Here's my situation, I want to update my huawei p20 pro (clt-l29) but I'm not receiving any ota updates and i think maybe it's because my phone's build number is not matching my phone's firmware version which is andr

I didn't find any guide. I was in fact guided by Mr. oslo83 in a telegram group https://t.me/flashing_huawei

The process is very simple. I will try to reproduce the steps I followed as under :-

1) Download the correct firmware for your device according to your region from https://androidhost.ru/search.html and extract it. (Note :The downloaded firmware must be of the same build number installed or superior bcoz downgrading can hard brick your device)

2) After extraction you will find a folder named "dload" (This is our concerned folder, pay attention!)

3) Inside the 'dload' you will find one zip file named 'update_sd', extract its content within the dload folder but keep the un-extracted zip also as it is.

4) Apart from 'update_sd.zip' you will also find two subfolders inside 'dload'.
In my case the two subfolders were '... 'update_sd_CLT-L29_hw_eu' & ''update_sd_CLT-L09_hw_eu'

5) Since my model was CLT-L29 therefore I deleted the subfolder named 'update_sd_CLT-L09_hw_eu'

6) Now rename the subfolder "update_sd_CLT-L29_hw_eu" to "CLT-L29_hw_eu" and on opening it you will find a same named zip inside. Like before extract its content within the subfolder and also keep the zip file intact'

7) That's it. Your 'dload' folder is now ready to be transferred to the USB drive for flashing.

8) Attach your OTG-USB to your device and restart your device. While restarting keep pressing Volume UP & DOWN key simultaneously. Your phone will now enter into dload mode and will start flashing after verifying firmware.

9) Bingo! you have now fully working stock rom. (Bootloader locked, FRP Unlocked, E-recovery functional again)

Note: Before doing this operation make sure your USB drive is perfectly working and exFAT formatted. You can check your drive by H2testW on windows. In my case my first USB drive was faulty and that's why dload was giving me errors.

Hi, my phone's version is 8.1 but its build number is 10 (not literally just 10, there are leading digits) so my question is, can I reflash 8.1 ?