Can you advise how to boot to pure DOS, as if I try and boot into a DOS ISO or floppy image with Grub4dos, I'm not able to access my USB stick or HD with the BIOS and flash util on? I've always used "MSIHQ USB Bootable Tool and BIOS Helper" before, which creates a bootable USB that autoflashes and it works fine but something's gone weird today as SLICToolkit is showing (SLIC Table Not Found!) at the moment.
If you already have a DOS bootable USB stick (FAT32 formatted) then just copy modified bios and flsh util to the stick, boot to DOS and flash the mod.
Hallelujah, it's OK now. I guess the MSI tool must corrupt the SLIC bios when copying it to the USB stick, so I'll avoid using that in future. Guess I've been running with no SLIC in my BIOS for the last three weeks