As to BIOS recovery, PM @rewben and ask him to respond in this thread. He is the resident notebook expert around here, you might say. If the computer is still responding to the keyboard, there is a chance that BIOS recovery will still work. You have to place the BIOS file on a FAT32-formatted USB key and reboot the computer, from what I understand. I have updated the BIOS using WinFlash, and I was extremely lucky to have no problems.
The BIOS factory reset is as follows.
Hold down Ctrl+Home, then hit power button.
keep holding Ctrl+Home untill you see "EZ-Flash" start.
Now wait until the factory shipped BIOS flash is finished, at the end of this process, it will say "restart in two seconds".
Your laptop should shut down on it's own (it's really important not to interrupt this process), and now you can try to start the PC.
*This operation will reset the BIOS to the factory installed BIOS*
Don't even think about the CMOS battery, you need to tear down to get to it, and that would void your warranty.
Hope this works for you!