What To Do When an Advised BIOS Upgrade Is Bad?
Bomarc writes "Twice now I've been advised to 'flash the BIOS to the latest,' once by a (major) hard drive controller maker (RAID); once by an OEM (who listed the update as 'critical,' and has removed older versions of the BIOS). Both times, the update has bricked an expensive piece of equipment. Both times, the response after the failed flash was 'It's not our problem, it's out of warranty.' Given that they recommended / advised that the unit be upgraded, shouldn't they shoulder the responsibility of BIOS upgrade failure? Also, if their design had sockets rather than soldering on parts, one could R/R the faulty part (BIOS chip), rather than going to eBay and praying. Am I the only one that has experienced this type of problem? Have you been advised to upgrade a BIOS (firmware); and the upgrade bricked the part or system? If so, what did you do? Should I name the companies?"
You should name the companies.
http://whatif.xkcd.com/16/
I think the most 'robust' anti-brick motherboard I've ever seen had two bios chips - and a hardware switch selecting which one was active. The active one was rendered read-only, you could only flash the inactive one.
To update the machine you'd flash the inactive, power down the system, flip the switch, power back on and hope it worked*. If it worked, generally you just trucked on on 'B' instead of 'A', in case there was something hidden borked that you didn't find for a while. If the update was borked you simply powered down again and flipped the switch back.
*Like with any bios update...
I don't read AC A human right
I'm too far down for this comment to really matter, but in general, it is possible to unbrick a failed BIOS flash. The reason is that already for some time all (or maybe almost all) manufacturers have two parts of the BIOS - one that gets updated, and a second part that never does, or maybe can't. The second part (actually it is the first), only has very rudimentary software. It can read floppy disks, but not much more than that. The idea is exactly that you can recover from a failed flash.
That means that to recover, you need to get the right program into a floppy, with the right BIOS on it. You then boot into this special flash mode, which often means pressing some key combination. I've done it on an LE1700 that I bought of e-bay, and I'm pretty sure you can do it on almost any computer.
In some more modern BIOSes you don't need a floppy, but can do it with a USB stick.
I'm too lazy to do a thorough search for the exact procedure, but here are two good links that I found:
http://www.mydellmini.com/forum/dell-mini-10v/18080-how-unbrick-mini-10v-using-floppy-drive.html (this will work also on other computers, I think)
http://www.wikihow.com/Reflash-BIOS