help....... bad uefi bios on MB...

I have a Asus P8H61-M-LX-PLUS-R2.0 MB with a bad (corrupt) #1203 bios , the newest one…, and when I try re-flashing it with the EZ FLASH 2 in the BIOS…, it says the new BIOS is not a UEFI bios and won’t read it…
Any one ever fixed one of these…?? I appreciate any help…
lentmain