If you get a power interruption whilst flashing the BIOS (that's the predominant reason for it going kaput) all you can do is send the machine in for repairs. You can't fix it yourself. When the updating process is interrupted the system won't POST and there's nothing you can do about it!

* Don't use Windows tools to flash BIOS from within Windows. That eliminates Windows problems from interfering.

* Don't use internet based 'automatic update' thingies for BIOS updates. You don't even NEED to update unless there's a problem that the new BIOS version is specifically designed to fix.

* Always flash BIOS from either a bootable floppy and DOS or from a bootable CD and DOS.

* Never flash BIOS unless you absolutely have to.