TheKiller57

Hello Thank you for your answer, the only step that I did not follow is the bios downgrade, because I have a bin file but I do not know how...

The link of the soft is broken, private..

It's activated :(

Matebook 13 2019 i5 8th 8go 256Go macOS Monterey EFI with all kext and oc file updated BIOS 1.30 The task bar for brightness not working, I can't set brightness...

https://www57.zippyshare.com/v/KdKxiVNk/file.html No problem this is the video link

Can I downgrade to 1.27 bios ?

The video is to big :p

https://drive.google.com/file/d/1wpCPBkyW6zJeONRa_SZJTMGy44CoAagM/view?usp=sharing

And how to downgrade ? I have the .bin bios file but no software for update it

Yes 1 minute