Try resetting the laptop. Each latop has its own procedure. Suggest unplugging the laptop and removing the battery and waiting a good 2 mins for the capacitors to drain. Then put battery back in, plug in and power up. If that doesn't work google 'reset your laptops model number and see what comes up.
Thanks, it worked!
Debugging for post failure (not able to get to bios) is usually done by removing stuff until it POSTS. for laptops this a pain but sometimes works. remove anything externally plugged (e.g. usb prniter, drive,..). POST? no- pull memory, mini-pci network, etc. eventually it should post.
Useful info for another time.