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Software Update and Recovery
Maintenance and Service Guide 3–5
3. Double-click the file with an .exe extension (for example,
filename.exe).
The BIOS installation begins.
4. Complete the installation by following the instructions on the
screen.
✎
After a message on the screen reports a successful installation,
you may delete the downloaded file from your hard drive.
Recovering the BIOS
✎
The BIOS recovery procedure requires a USB diskette drive
and a formatted diskette.
The BIOS can be recovered if the flash memory is corrupted.
Flash memory corruption can occur if the notebook powers down
while the BIOS is being updated.
When the notebook is turned on, the boot block portion of the
flash memory performs an integrity check on the rest of the BIOS
image and enters recovery mode if the image is corrupt.
BIOS recovery can be forced on a non-functioning notebook by
turning on the notebook while pressing and holding the Windows
logo key +
B on the nonfunctioning notebook keyboard until the
caps lock light blinks.
To recover the BIOS:
1. If the nonfunctioning notebook is docked in an optional
docking device, undock the notebook.
2. Attach the USB diskette drive directly to a USB port on the
nonfunctioning notebook. (USB hubs are not supported for
BIOS recovery).