I own a presario F500 laptop, last two days ago, i upgraded my BIOS to Phoenix F.1F, my laptop wasn't responding for almost 4 hours, i shutdown my laptop and when i re-start it...all i get was a blank screen, my BIOS or CMOS setup is gone or corrupted.
Any suggestions?...before i bring it to the repair center, its still under warranty. How can i install my laptop's BIOS?
Thanks, guys.

Thanks, guys.