Bootlander unlock problem on huawei p Smart 2019

[Kacpi292]

Hello, I got this error:

Read phone info 2024-06-01 17:35:37.914 Selected Cpu/Bootloader - Kirin710_P1_V2
2024-06-01 17:35:37.918 Connecting to server...
2024-06-01 17:35:38.826 Connected!
2024-06-01 17:35:39.755 Find device COM12, handle 12668
BOOTLOADER selected to update:Kirin710_P1_V2
downloading file Kirin710_P1_V2_0.dtwork...
Process file Kirin710_P1_V2_0.dtwork Fail, repeat...
2024-06-01 17:35:41.619 unknown responce!

Anyone know how to fix it? Please give me a quick response.

[Valdemaras]

Is there a battery still attached to the device during this process? Try to delete loaders from the HCU directory, then restart the process. Monitor Device manager window on your computer to see what happens with the device.

[Kacpi292]

Is there a battery still attached to the device during this process? Try to delete loaders from the HCU directory, then restart the process. Monitor Device manager window on your computer to see what happens with the device.

Have I done the drivers for my phone well. I did according to this guide from yt https://youtu.be/B7Zn9L38z8c?si=I7dx17SmNj2edxoi

[Valdemaras]

We won't be able to review external guides as only ones on the HCU matters. Testpoint drivers are provided in the guides where they are needed.

[Kacpi292]

Before operation turn phone to TestPoint mode:
Turn off phone, then short TestPoint on phone pcb
and plug USB cable
Wait for device "HUAWEI USB COM 1.0" in Ports


Repair
New FB User Lock : UNLOCKED
Unlock downgrade/customization limitations
Reboot after repair
Selected Cpu/Bootloader - Kirin710_P1_V2
2024-06-13 11:23:37.164 Connecting to server...
2024-06-13 11:23:38.814 Connected!
2024-06-13 11:23:39.836 Find device COM6, handle 11872
BOOTLOADER selected to update:Kirin710_P1_V2
downloading file Kirin710_P1_V2_0.dtwork...
downloading file Kirin710_P1_V2_2.dtwork...
downloading file Kirin710_P1_V2_3.dtwork...
downloading file Kirin710_P1_V2_4.dtwork...
downloading file Kirin710_P1_V2_6.dtwork...
2024-06-13 11:25:57.729 Waiting for device REMOVAL/INSERTION...
2024-06-13 11:26:00.307 Device ready!
2024-06-13 11:26:00.326 Connecting to server...
2024-06-13 11:26:01.239 Connected!
2024-06-13 11:26:20.871 Unlocking bootloader...
2024-06-13 11:26:20.879 Reading Certify data...
2024-06-13 11:26:57.982 Fastboot command fail!
Memo log saved to C:\Users\KAPI\Downloads\HCU_0382 (1)\Logs\20240613_112658_HCU_XloaderRepair_.txt

During the process, the controller also turns itself off HUAWEI USB COM 1.0

[Valdemaras]

You need to do Detection first only then repair. After doing detection your phone should exit testpoint mode and enter fastboot (screen may be still completely black though, all is ok) Check if all the drivers of fastboot are okay in device manager and there are no "!" or "?" marks next to it otherwise the process will fail.
What android your device runs?

[Kacpi292]

Android 10. I downloaded the drivers from your guide where you talk about the test point mode. The driver is first Huawei USB Com 1.0, and then it switches during the process.

[Valdemaras]

You can not unlock bootloader on Android 10 for your phone, it is written in the guide that device must be on Android 9. Yes it is supposed to be Huawei USB Com 1.0 at first, then it must exit it during detection and enter fastboot - appear with fastboot port.

[Kacpi292]

It says that everything worked but the bootloaner is still not unlocked

Found OEM data:
Model: POT-L21
Vendor: hw
Country: eu
Version limitation: OFF
Phone ID: F2E9F6A5F2D0747
2024-06-13 16:56:57.394 Repairing...
2024-06-13 16:56:58.558 Write partition oeminfo...
2024-06-13 16:57:00.936 Write partition oeminfo success!
2024-06-13 16:57:00.988 Unlocking restrictions...
2024-06-13 16:57:01.350 Unlock restrictions success!
2024-06-13 16:57:01.369 Rebooting...
2024-06-13 16:57:01.420 Reboot success!
2024-06-13 16:57:01.439 Done!

In fastboot mode, it still writes phone locked

[Valdemaras]

Yes, as I just told you in a previous reply, the bootloader can not be unlocked on Android 10 or higher for your phone as stated in tutorials and the support model table, you must find a way to downgrade it first to Android 9.