Lenovo M92p Invalid MT-M and S/N

October 20, 2015 at 12:45:20
Specs: Windows 7, 4
I replaced the motherboard in an M92p recently and I can't get the S/N or MT-M to be detected properly. I have the Lenovo Hardware Maintenance Diskette and I've used it multiple times so I know it works (Version 1.86). I have entered the number (1S**********) in the maintenance diskette and it appears if I select the read option in the HMD. Here's what I've tried.

- Replacing the motherboard again
- Readding the MT-M and S/N
- Adding the Mobo S/N (wasn't present)
- Clearing CMOS with jumper and Loading optimized defaults
- Flashing Bios with newer and older BIOS

Any tips would be much appreciated.

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October 20, 2015 at 15:26:37
Invalid MT-M and S/N lenovo

Did you try it this way?

"Well I figured out what I was doing wrong.

The fact is, you CAN update the MTM & SN using the WinPhlash BIOS update utility. If you've already flashed your BIOS to current, all you have to do is tell WinPhlash to update the DMI only, and put in the MTM & SN. It works."

message edited by Johnw

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October 20, 2015 at 18:27:04
You also might get some help from this recent thread:


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