[Request] Unlocked Acer PH315-52 (Helios 300 2019) BIOS

Hi, im new in this stuff and really want to be able to change few things with unlocked bios. My laptop have bios v1.12, latest from Acer site. I used guide You can see in background of 1 screenshot. Everything good till "write back dump" step, I get error 167 (second screenshot).

Zrzut ekranu 2022-04-03 144406.png

Zrzut ekranu 2022-04-03 150801.png

I also attach biosdump program has created. Any chance someone can help me unlocking my bios and fix the issue? I would greatly appreciate it.

Thanks to anybody in advance.

Edit by Fernando: Thread title customized and shortened

biosreg.rar (5.9 MB)

Hello there, bios is write locked from os, you need spi programmer, I bet the bios is rsa signed too, so any changes to the bios file will result in a brick.