Note: As this is a proprietary, legacy tool from IBM/Lenovo, it is rarely found directly on modern Lenovo support sites.
The HMD Version 1.76 contains a feature—sometimes hidden or requiring a specific key sequence—that can reset or clear the security chip on select models. Disclaimer: This should only be used on equipment you legally own. For vintage collectors who bought a "parts only" unit with a forgotten password, v1.76 is often the difference between a doorstop and a working retro-laptop.
Follow the on-screen prompts to write the changes to the EEPROM. Press Y to confirm. Once finished, turn off the laptop, remove the floppy disk, and boot into the BIOS (press ) to verify that your Serial Number and UUID are now correctly populated. Troubleshooting and Common Errors "EEPROM is Write-Protected"
The HMD went through many versions, each catering to specific generational leaps in Intel chipset technology and ThinkPad architecture.
Once loaded, the interface presents a numbered menu. The most common operations use the following sequence:
It is often found through legacy forums such as or archival sites, as it is considered vital "abandonware" for maintaining older hardware.
The technician inserts the diskette and changes the boot order to legacy floppy.
T20, T21, T22, T23, T30, T40, T41, T42, T43 ThinkPad X Series: X20, X22, X30, X31, X40, X41 ThinkPad R Series: R30, R31, R32, R40, R50, R51, R52 ThinkPad A & G Series: A20, A30, A31, G40, G41 Step-by-Step Usage Guide
"Come on," Elias whispered. "Give me the utility."
Since Lenovo has discontinued official distribution of the floppy diskette to the general public, obtaining a clean copy requires resourcefulness. While older support documents sometimes link to http://www.lenovo.com/ for the file, those direct links are long deprecated.
He typed: 176
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