Did you flash the BIOS from a Windows application? If the update got stuck in the middle of the process, then you'll have to replace the motherboard. What was wrong with the system that required a BIOS update?
After many blue screens i was running Dell driver update ,hoping this would
solve my problem. I did all the required steps and precautions. Big shock when
it was the Bios update that crashed the entire system . Yes, I updated over Windows . Should be Dell picking up the bill- if they know your motherbord can fry
if updated over Windows, why couldnt the update be done safer ? This just feels like going to the shop for new tires and you are told that your entire car has to be replaced..