Satellite U400/Satellite Pro U400/PORTEGE M800
Maintenance Manual
G-1
Appendix G
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
USB doggle
Rewriting the BIOS
1. Turn off the power to the computer.
2. Remove the external cables and cards.
3. Connect an external FDD and insert the BIOS rewriting disk into the external
FDD.
4. Connect the USB doggle special for BIOS rewrite
5. Turn on the power
6. The BIOS rewriting starts.
7. When the process is completed, it beeps and the system automatically
reboots.
NOTE: 1. Connect the AC adaptor 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.
3. If 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 or system can not boot . In this case, insert the BIOS
rewriting disk, and the BIOS will be rewritten.
Summary of Contents for Satellite Pro U400 Series
Page 110: ...Test Program for Field Satellite U400 and Satellite Pro U400 Tests and Diagnostics Manual 17 ...
Page 168: ...Replacement Procedures Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual 4 iv ...
Page 276: ...Pin Assignment 36 Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual ...
Page 302: ...Wiring Diagrams F 2 Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual ...