[REQUEST] Asus ROG G751JM BIOS Unlock

[gagral]

Hi!

I have an Asus G751JM here and need to unlock my bios.

So, i changed all menus access levels from DEFAULT to USER using AMIBCP (tried both v4.53 and v4.55.0070) and saved it.
Problem is that, when i try to flash it with AFUWIN, i get "3-error:rom file size does not match existing bios size".
Also tried both WinFlash and EasyFlash but with no sucess. It even says that i got the correct BIOS file at first, but then it says that the BIOS file is invalid when i attempt to flash it.

Can somebody help me please?

Link to original BIOS: https://dlcdnets.asus.com/pub/ASUS/nb/G7...MAS208.zip