Cant flash mod on to Asrock B450M Pro4

[fitsfer]

Whenever I try to flash a modded bios image to my Asrock B450M Pro4 , i get the error: "Secure Flash Check Fail!" and I'm prompted to restart. Ive tried:

• Downgrading to a bios version with AGESA 1.0.0.6 beforehand
• using UBU tool to try to remove the security check (the filesize doesn't change)
• different file extensions

any help would be appreciated!

[MrAnonymous7122]

I would assume it's still failing the security check, OEM update software usually doesn't allow modded bios at all so you would have to try a different method for flashing.