06-10-2012 05:52 AM
Try removing the CMOS battery if you can for few minutes without any power, then try turning back on and check. Otherwise you might need to send your laptop to Authorized Service Center to try resetting the CMOS settings if it can be cleared.
11-26-2013 11:32 PM
Method for a HP BIOS RECOVERY:
The BIOS recovery procedure requires a USB diskette drive
and a formatted diskette.
USB pen ----> doesn't work
Download your BIOS ROM image from HP, please note the
Copy the bin file of the BIOS on the diskette. eg:68YHV.BIN
and not ROM.BIN
Press the 4 arrow keys (up, down, right, left) on the keyboard
and power ON.
Wait ~2, 3 seconds an release the keys.
Wait for the end of the process ( 2 minutes)