Acer Aspire 4743Z Service Manual page 214

Performing a BIOS recovery
To perform a BIOS recovery:
1. Shut down the BIOS failed-computer.
2. Connect the USB storage disk containing the Crisis Recovery disk files to the computer.
3. Press and hold the <Fn + Esc> keys, then press the power button.
The BIOS recovery process begins. When the process is complete the computer will
automatically reboot.
4. Disconnect the USB storage disk from the computer.
5. Perform a BIOS flash procedure to update the BIOS firmware. Refer to
Utilities for detailed instructions.
5-8
BIOS Flash
Jumper and Connector Locations
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