late to this issue but have to ask. Why are you updating the BIOS? was something wrong? a feature you needed? or is it just updating because it is there? I recommend not updating a BIOS unless there is a need. As you can see, the practice can be difficult and it is also dangerous. Anything that goes wrong turns you favorite computer into a door stop. Updating a BIOS should be treated like cardiac surgery. You wouldn't have that surgery unless you really needed it, not because it sounded cool and was available.
Do BIOS updates intelligently and sparingly.
Do BIOS updates intelligently and sparingly.