[Request] black screen after tool finishes to unlock bootloader

[nanerb25]

my issue was that after the tool flashes the aboot and sbl1 when i reboot my device, it vibrates but no display but i can boot to fastboot mode and flash partitions, hopefully you can come up with a solution to this

Device Info:

Android: 8.1.0 EMUI Version: 8.2.0.036(07JH) Phone Model: DUB-LX3(C636) Android Security Patch Level: Febuary 1, 2020

[werasik2aa]

Hi there. Long weeks ago i was busy

[werasik2aa]

So you see vibration and black screen hmm

[werasik2aa]

When you trying to turn on it shows any logo? Or

[nanerb25]

No, the phone vibrates but no screen, and it looks like it boots directly to some sort of qcom diagnostics based on windows device manager, but sometimes just infinity reboot, but i can boot it to fastboot mode by holding volume down but ofc no screen(no backlight, nothing on the screen at all), also no logo

[werasik2aa]

hmm let's think why this happenes

[werasik2aa]

DUB-TEST.zip

[werasik2aa]

try this

[nanerb25]

i will test if i have time

[werasik2aa]

Ok...

[nanerb25]

hello, i will try to flash the files u gave right now

[nanerb25]

sadly after flashing via fastboot via flashing the incompatible image, the screen is still black

[nanerb25]

it looks like aboot is incompatible

[werasik2aa]

looks like not only aboot here cause this

[werasik2aa]

there exist some firmware packages for qpst https://huaweistockrom.com/huawei-y7-2019-prime-dub-lx3

we can try some. Need only to flash sbl1.mbn and aboot.mbn

[nanerb25]

should i send here the firmware i have working here?

[nanerb25]

i will send it anyways

https://mega.nz/file/w9BzRRYJ#Yn3iuqU0rbMpLDe_R5RZv09U9Itdh1K9IJeC60MzVnA

[werasik2aa]

Hm if its working. Its good. Need to restore stock. Then try to flash aboot, sbl1 from this working one. If fastboot allows to flash and boot images its will be good.

[nanerb25]

aboot is the problem because if i just restore the aboot from the working firmware, screen actually lights up and boots

[werasik2aa]

This firmware which you provided. Is it board firmware? Because im didn't download it yet

[nanerb25]

its a update firmware but the update.app is already extracted

[werasik2aa]

hm. Strange i can't find another board software. I think need to use one

[werasik2aa]

way. to flash full bootloader chain

[werasik2aa]

just with partition manager LX3.zip

[werasik2aa]

interesting things

[werasik2aa]

maybe because board firmware has different gpt

[werasik2aa]

so i think 100 % because different gpt. The device tries to boot it. But it's goes to black screen because different gpt regions

[werasik2aa]

No activity. Not interested or i don't know why you stopped this fight with Huawei bootloader

[nanerb25]

im sorry, its because i killed.... the device's battery and its screen by accident, and so i forgot this also and got myself a new phone :)