[Huawei P20 Pro Questions & Answers] Boooom12345:
Thanks to QuazIqbal, my Huawei P20 Pro (CLT-L29) is now working again!!

THANK you so much for posting on xda-developers [MENTION=6847651]QuazIqbal[/MENTION]. 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://xdaforums.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