10-07-201303:30 AM - last edited on 10-07-201305:45 AM by
I am having this problem with my Pavilion dv7. CAPS & NUM Lock flash twice. My laptop has no battery, is powered solely by being plugged in. I have unplugged it, forced shut down (by holding the power button) waited 30 seconds, 60 seconds, 2 minutes, etc. and the screen remains black. I have also removed the BIOS battery.
Since the screen is black, I am not able to run any of the F8 suggestions, or any other type of startup.
I tried several times Windows+B combination with two usb sticks, the last one... an old USB stick with 128MB formatted as FAT16 and with HP_TOOLS installed. The BIOS file to flash is 3635F12, extracted from sp46804. I did not tried to rename the bios file because i dont know wich name i have to use.