A forum moderator will probably be along to provide a reversal procedure for you to go back to a Sandy UEFI/BIOS again.
I don't have the needed special .rar or .zip BIOS file, or I could have helped you. You will need the forum's flasher though, so her...
I don't have the needed special .rar or .zip BIOS file, or I could have helped you. You will need the forum's flasher though, so her...