P20 lite unlocked bootloop

[Advanced07]

Hello guys I'm trying to save my bricked P20 Lite but I am running into some issues. I unlocked the bootloader using testpoint but twrp won't flash or boot. Flashing gives me a flash write failure, booting gives me a invalid command error and I can't wipe cache either. I could really use your help.

 

[-Alf-]

flash write failure

"flash write failure" - it might be due to a locked bootloader or hardware issue, AFAIK.
Try explaining what exactly happened, step by step.

 

[Advanced07]

"flash write failure" - it might be due to a locked bootloader or hardware issue, AFAIK.
Try explaining what exactly happened, step by step.

I unlocked my bricked P20 lite bootloader with the test pin method, then I tried to flash TWRP in fastboot and I got those errors.

 

[-Alf-]

I unlocked my bricked P20 lite bootloader with the test pin method, then I tried to flash TWRP in fastboot and I got those errors.

Are you sure that bootloader is unlocked? (With unlocked BL you will see that message each time when you reboot: "Your device has been unlocked and can't be trusted").
Have you enabled in Developer menu
"OEM unlock" ?

In fastboot mode run commands :
fastboot oem get-build-number
fastboot oem get-product-model
fastboot getvar vendorcountry
fastboot oem oeminforead-CUSTOM_VERSION
fastboot oem oeminforead-SYSTEM_VERSION
and post the results.

 

[Advanced07]

Are you sure that bootloader is unlocked? (With unlocked BL you will see that message each time when you reboot: "Your device has been unlocked and can't be trusted").
Have you enabled in Developer menu
"OEM unlock" ?

In fastboot mode run commands :
fastboot oem get-build-number
fastboot oem get-product-model
fastboot getvar vendorcountry
fastboot oem oeminforead-CUSTOM_VERSION
fastboot oem oeminforead-SYSTEM_VERSION
and post the results.

1. Yes I do get that message that it's unlocked.
2. My device is bricked so that's impossible to enable. I unlocked it after it started bootlooping.
3. Gonna do those commands and tell the results

 

[Advanced07]

(bootloader) :ANE-LX1 9.1.0.372(C432E7R1P7)
(bootloader) ANE-LX1
vendorcountry: hw/eu
(bootloader) :ANE-LX1-CUST 9.1.0.7(C432)
(bootloader) :ANE-LX1 9.1.0.132(C432E5R1P7)

 

[-Alf-]

What shows Fastboot screen, at the bottom, Phone unlocked and FRP unlock ?

 

[Advanced07]

What shows Fastboot screen, at the bottom, Phone unlocked and FRP unlock ?

Phone unlocked and FRP unlock.

I unlocked the phone and the frp went away but it still gave me errors. Rebooted and frp lock was back + bootloader unlock gives error

 

[-Alf-]

Rebooted and frp lock was back + bootloader unlock gives error

as i mentioned a month ago :

IMO it might be the HW problem , dead memory or damaged motherboard

Probably your emmc memory is fried. Not being able to unlock BL & FRP permanently is a sure sign. But I'm just an amateur and an android fan, maybe I'm wrong.

 

[Advanced07]

as i mentioned a month ago :

Probably your emmc memory is fried. Not being able to unlock BL & FRP permanently is a sure sign. But I'm just an amateur and an android fan, maybe I'm wrong.

It does have water damage could it be because of that? That would be unfortunate.

 

[-Alf-]

It does have water damage could it be because of that? That would be unfortunate.

- known failure due to water exposure , although the write failures are intermittent.
P.S.: since January are you trying unbrick a water damaged phone?

 

[Advanced07]

- known failure due to water exposure , although the write failures are intermittent.
P.S.: since January are you trying unbrick a water damaged phone?

Nope i already know it was dead (repairs say it was total loss) but when I saw the new unlock method I thought it might be saved. Guess I was wrong but oh well I tried anyways.

 

[apexashwin]

Nope i already know it was dead (repairs say it was total loss) but when I saw the new unlock method I thought it might be saved. Guess I was wrong but oh well I tried anyways.

Hi i have a query, the phone that you unlocked was it running on emui 9.1? If yes did you use potato nv to unlock? I wanna try it myself

 

[Advanced07]

Hi i have a query, the phone that you unlocked was it running on emui 9.1? If yes did you use potato nv to unlock? I wanna try it myself

It was running on the latest version and yes I did use potato NV

 

[apexashwin]

It was running on the latest version and yes I did use potato NV

Hello thanks for your quick reply,I finally managed to unlock my p20 lite using potato nv.