Updating (Flashing) Bios From A Diskette; Recovering From A Post/Bios Update Failure - Lenovo ThinkCentre A57e Hardware Maintenance Manual

Updating (flashing) BIOS from a diskette

1. Insert a system program update (flash) diskette into the diskette drive. The
2. Turn on the computer. If it is already on, you must turn it off and back on. The
3. Follow the instructions on the screen to complete the update.

Recovering from a POST/BIOS update failure

Attention: If an interruption occurs during a POST/BIOS update (flash update),
the computer might not restart correctly. If this occurs, perform the following
procedure (also known as a Boot-block recovery).
Note: If your computer has no internal diskette drive, an optional USB diskette
10. Close or install the cover and reconnect all external cables.
11. Plug in computer and power on.
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Hardware Maintenance Manual
system program updates are available at http://www.lenovo.com/support on
the World Wide Web.
update begins.
drive must be connected to use the BIOS flash diskette.
1. Remove power from the system and open the cover.
2. Remove any parts necessary to gain access to the Clear CMOS/Recovery
jumper.
3. Move the Clear CMOS/Recovery jumper from the standard position (pins 1
and 2) to pins 2 and 3.
4. Insert the BIOS flash diskette in the diskette drive.
5. Close the cover and reconnect the computer power cord to the computer and
to an electrical outlet. Turn on the computer.
6. The recovery session takes two to three minutes and starts with two short
beeps. Video will be displayed after a short period, indicating that the
recovery process has started.
7. When the flash recovery completes and the computer turns off, unplug the
computer and open the cover.
8. Move the Clear CMOS/Recovery jumper back to the original position (pins 1
and 2).
9. Remove the BIOS flash diskette from the diskette drive.