Updating (Flashing) Bios From A Disc; Recovering From A Post/Bios Update Failure - Lenovo ThinkCentre 3231 Hardware Maintenance Manual

v Sources for obtaining the latest level BIOS available
To update (flash) the BIOS, see "Updating (flashing) BIOS from a disc."

Updating (flashing) BIOS from a disc

This section provides instructions on how to update (flash) BIOS from a disc.
System BIOS program updates are available at:
http://www.lenovo.com/support
To update (flash) BIOS from a disc:
1. Make sure the optical drive you want to use is set as the first boot device in the
2. Make sure the computer is turned on. Then, insert the system program update
3. Turn the computer off and back on again. The update begins.
4. When prompted to change the serial number, press Y.
5. Type in the twenty character serial number of your computer and then press
6. When prompted to change the machine type/model, press Y.
7. Type in the twenty character machine type/model of your computer and then
8. Follow the instructions on the screen to complete the update.

Recovering from a POST/BIOS update failure

If the power to your computer is interrupted while POST/BIOS is being updated
(flash update), your computer might not restart correctly. If this happens, perform
the following procedure which is commonly called Boot-block Recovery.
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Hardware Maintenance Manual
1. Lenovo support web site:
http://www.lenovo.com/support/
2. Lenovo Customer Support Center
3. Levels 1 and 2 Support
startup device sequence. See "Selecting a startup device" on page 51.
(flash) disc into the optical drive.
Enter.
press Enter.
1. Turn off the computer and any attached devices, such as printers, monitors,
and external drives.
2. Unplug all power cords from electrical outlets, and remove or open the
computer cover. See "Removing the computer cover" on page 86 or "Opening
the computer cover" on page 128.
3. Depending on your machine type, you might need to lay the computer on its
side for easier access to the system board or you might need to pivot the
optical drive bay assembly upward and or remove the hard disk drive to
access the system board, see "Accessing the system board components and
drives" on page 129.
4. Locate the Clear CMOS/Recovery jumper on the system board. See "Locating
parts on the system board" on page 89 or "Locating parts on the system
board" on page 131.
5. Remove any cables that impede access to the Clear CMOS/Recovery jumper.
6. Move the jumper from the standard position (pin 1 and pin 2) to pin 2 and
pin 3.
7. Reconnect any cables that were disconnected.