I have an AA1 laptop and I have to switch from ide mode to AHCI mode but unfortunately my AA1 doesn't have this option on the bios setup. I have decided to update the bios but unfortunately my mistake to do the upgrade within windows environment. The update process hangsup and I have to pull the battery and ac power to shut it down. When I turn it on I only got the black screen of death. I tried the Fn + ESC keys and power. What I have is green power led and Bluetooth on. I al tried to do static discharge and repeat the process and still have the same result. I have downloaded al the bios versions from acer.com but still none of the bios worked. when I the bios recovery procedure the usb led is not working so I believe that the update never started at all. Can any one help me with this?