I was performing a BIOS update on a SL 510 thru the Lenovo update utility. The AC adapter was connected to the laptop. The laptop froze during the update process and I was unable to get it to respond. This was after it had been running for at least 5 min and the fan was running at high. I was forced to shutdown and now the laptop will not POST. Is there any way to recover the BIOS or is this unit done?