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Features and Specifications
Using Electronic Serial Numbers
Hewlett-Packard has also provided a utility called ESN.EXE in the C:\OMNIBOOK
directory to set the serial number. This program must be run in MS-DOS. This Utility
does the following:
1. Checks to make sure no electronic serial number is set.
2. Prompts to confirm that you want to set the serial number.
3. Prompts for the serial number and gives the location (bottom of unit).
4. Confirms the Serial Number is valid. If it is it asks you to verify the serial number.
If it is not correct it prompts for the serial number again.
5. It burns the electronic serial number into flash memory and prompts you to
restart the OmniBook.
To correct an incorrect serial number
If for some reason the customer receives an OmniBook with an incorrect electronic
serial number, the customer can run the ESN and it will do the following:
1. Ask the user to verify the serial number is correct.
2. If the user answers no, it will give the user a pass number. The user must call HP
customer support and give the pass number.
3. The HP customer support representative will give the user a password that will
remove the current serial number.
4. Restart the system and follow the instructions above to set a new serial number.
About BIOS Updates
You can safely update the OmniBook BIOS without impact to the serial number. BIOS updates do not
erase the electronic serial number located in the motherboard.
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