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Updating (flashing) BIOS from a disc
This section provides instructions on how to update (flash) BIOS from a disc.
System program updates are available at:
http://www.lenovo.com/support
To update (flash) BIOS from a disc, do the following:
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 and insert the disc into the optical drive.
3. When prompted to change the serial number, press N. If you want to change
4. When prompted to change the machine type/model, press N. If you want to
5. Follow the instructions on the screen to complete the update.
Updating (flashing) BIOS from your operating system
Note: Because Lenovo makes constant improvements to the Web site, the Web
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:
3. Print these instructions. This is very important because they are not on the
4. Follow the printed instructions to download, extract, and install 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).
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Hardware Maintenance Manual
startup device sequence. See "Selecting or changing the startup device
sequence" on page 47.
The update begins.
Note: You can insert the disc into the optical drive when you are setting the
startup device sequence. However, if you insert the disc into the optical
drive when you have already entered the operating system, you need to
restart the computer to begin the update process.
the serial number, press Y when prompted, type in the serial number and press
Enter.
change the machine type/model, press Y when prompted, type in the machine
type/model and press Enter.
page contents are subject to change without notice, including the contents
referenced in the following procedure.
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.
screen after the download begins.
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