I tried to recover toshiba satellite pro C640 i download from toshiba support and rename it from MC10200.FD to Bios.fd i used key combination fn+f, the power led is blinking and the usb thumb is blinking to, i thought it run nicely. I wait it until the power led and usb thumb not blinking (it's about 10-15 minutes), then i restarted the notebook and the screen remain blank. i thought i had a bad bios flash, so i downloaded the other version of bios and reflash it. but now everytime i press fn+f the power led is blinking but usb thumb didn't, and the power led stop blinking and restart the notebook but still remain blank. Can anyone help me here. Thx