Appendix G BIOS rewrite procedures

Appendices

Appendix G BIOS rewrite procedures

This Appendix explains how to rewrite the system BIOS program when you update the system BIOS.

Tools

To rewrite the BIOS, you need the following tool:

‰BIOS/EC/KBC rewriting disk for the computer that has renewed BIOS data.

Rewriting the BIOS

1.Set the system to boot mode.

2.Turn off the power to the computer.

3.Remove the external cable and PC card.

4.Connect an USB FDD and insert the BIOS/EC/KBC rewriting disk into the USB FDD.

5.Turn on the power while holding down the tilde character key until a beep sounds. For example

(US Keyboard)

(UK Keyboard)

6.The BIOS rewriting starts

7.When the process is completed, it beeps and the system automatically reboots.

NOTE: 1. Connect the AC adapter to the computer when you rewrite the BIOS.

2.Do not turn off the power while you are rewriting the BIOS. If the rewrite fails, it might be impossible to start up the computer.

3If you fail to rewrite BIOS, then when you next turn on the power, a message may be displayed that the contents of the BIOS have been erased. In this case, insert the BIOS rewriting disk and the BIOS will be rewritten.

PORTEGE R500 Maintenance Manual (960-634) [CONFIDENTIAL]

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Toshiba r500 manual Appendix G Bios rewrite procedures Appendices, Tools, Rewriting the Bios