How To Update Serial Number In Bios Lenovo Thinkpad

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Background: I have a T40 that boots to a RFID error. It works fine after pushing 'Esc' but I would like to fix it. One thing that seems to have worked for some people is deleting, then re-entering the model/UUID information.

Number in bios is - 2378 DHU - this number from T41.Any Lenovo to correct this situation? On it body is number 1834, but this service program detects notebook as a T41 (Bios utility, lenovo system box and other).


Problem:

How To Update Serial Number In Bios Lenovo Thinkpad Laptop

Here's where I need a little help. Using the BIOS update file from IBM/Lenovo, I was able to delete the old number. I am trying to enter the new (actually the same) model number. The screen shows _____-____. The cursor is in the second (3 digit) portion of the blanks, and I can't get it over to the other side. At this point, I can only get it to accept 3 digits. Update

How To Update Serial Number In Bios Lenovo Thinkpad 7


How To Update Serial Number In Bios Lenovo Thinkpad Key

This seems like something simple... but its 3AM over here, and I just don't see it. If anyone who's done this before could give me a tip, I'd appreciate it.