GIGABYTE B450 AORUS M and rebar

[Kuri0]

Flashing Gigabyte while avoiding "Invalid BIOS image"

I decided to investigate the error “Invalid BIOS image” that plagued some Gigabyte users. It turns out Gigabyte is using a structure called BiosDataRecord to perform an integrity check. It seems Gigabyte specific and it was present in older platforms as well (checked and found at Z87 and X79), just that it isn’t/wasn’t always fully activated. [Gigabyte_BDR.png] Edit: In Volume checks, the 4th block is not what I originally thought, but rather an order, always descending. And 0Dh is not nec…

it’s all in the rebaruefi wiki