Lenovo ThinkCentre A58e User Guide - Page 52

Updating (flashing) BIOS from your operating system, Recovering from a POST/BIOS update failure

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Updating (flashing) BIOS from your operating system Note: Because Lenovo makes constant improvements to the Web site, the Web page contents are subject to change without notice, including the contents referenced in the following procedure. To update (flash) BIOS from your operating system: 1. Go to http://www.lenovo.com/support. 2. Do the following to locate the downloadable files for your machine type: a. In the Enter a product number field, type your machine type and click Go. b. Click Downloads and drivers. c. Select BIOS in the Refine results field to easily locate all the BIOS related links. d. Click the BIOS update link. e. Click the TXT file that contains the instructions for updating (flashing) BIOS from your operating system. 3. Print these instructions. This is very important because they are not on the screen after the download begins. 4. Follow the printed instructions to download, extract, and install 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. 1. Insert the POST/BIOS update (flash update) disc into the optical drive when the computer is turned on. 2. Turn the computer off. 3. Turn the computer on and, immediately during startup, press Ctrl+Home. 4. The computer will automatically begin recovering the POST/BIOS, and you will see a screen indicating that the recovery has started. After the recovery session completes, the computer restarts automatically. 5. Remove the POST/BIOS update (flash update) disc from the optical drive. 44 User Guide

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Updating (flashing) BIOS from your operating system
Note:
Because Lenovo makes constant improvements to the Web site, the Web
page contents are subject to change without notice, including the contents
referenced in the following procedure.
To update (flash) BIOS from your operating system:
1.
2.
Do the following to locate the downloadable files for your machine type:
a.
In the
Enter a product number
field, type your machine type and click
Go
.
b.
Click
Downloads and drivers
.
c.
Select
BIOS
in the
Refine results
field to easily locate all the BIOS related
links.
d.
Click the BIOS update link.
e.
Click the TXT file that contains the instructions for updating (flashing) BIOS
from your operating system.
3.
Print these instructions. This is very important because they are not on the
screen after the download begins.
4.
Follow the printed instructions to download, extract, and install 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.
1.
Insert the POST/BIOS update (flash update) disc into the optical drive when
the computer is turned on.
2.
Turn the computer off.
3.
Turn the computer on and, immediately during startup, press Ctrl+Home.
4.
The computer will automatically begin recovering the POST/BIOS, and you
will see a screen indicating that the recovery has started. After the recovery
session completes, the computer restarts automatically.
5.
Remove the POST/BIOS update (flash update) disc from the optical drive.
44
User Guide