Hi, I also have a similar board I am trying to mod and flash - a Gigabyte GA-z170x (gaming 7) with an F20 bios. I am currently on the f20 bios already and the manuf. site states that you cannot go backwards from it - would I be able to flash over it with efiflash .44? Could I even go back one revision with efiflash? The new revision is hideous looking and removed a few small features. Thanks