Do not continue flashing !!
> It may render your Bios useless or (with luck)the board starts with emergency Bios (Bootblock Bios)
Make sure you have the correct Bios !
If you get this "Bootblock Mismatch" error message do not continue flashing - go to Uniflash Advanced menu and use the option Flash including bootblock - if the message comes again press Y and continue ( Bootblock and main Bios are updated)