Except the problem with the certificate, in the pictures I see the biosmod working fine ... Thanks for the feedback
Works a treat! Flashed and activated without any issues. Do mind that Asus MyLogo doesn't seem to work on this ROM anymore (the tool just freezes) while it did on the original BIOS image. Don't know why but I don't really care either.
Thanks for the feedback. The biosmod is slightly different from the original bios so the tool (maybe) can't handle it anymore.