90 Aspire Z3760 / Z3761 / Z5760 / Z5761 AIO Computer Service Guide
BIOS Update
Updating the BIOS in DOS Mode
1. Press the power button to turn on the computer and boot to DOS mode.
2. Key in 'cd dostool'. (Go to BIOS path like "A:\DOSTOOL")
3. Disable the ME firmware. See page 87 for instructions.
4. Key in 'flash4M.bat' or 'flash4M'.
5. Press Enter to flash the system BIOS and ME firmware.
6. Shut down the computer and disconnect the power source.
7. Enable the ME firmware. See page 87 for instructions.
8. Clear the CMOS data. See page 88 for instructions.
9. Reboot the computer.
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