Later models (T60, X60, early Lenovo ThinkPads) moved to a different security architecture, making HMD 1.76 ineffective. Earlier versions (1.69) lack support for newer EEPROM chips found in the T43 and R52.
: Upon booting, the user enters a menu where they can select "Add S/N data to EEPROM" and input a 20-digit string following the format 1STTTTMMMMCCSSSSSSSS (where T=Type, M=Model, C=Country, and S=Serial). Safety and Compliance IBM and Lenovo Hardware Maintenance Manuals (HMM) specify that this tool is intended for trained service personnel Thinkpad Hardware Maintenance Diskette Version 1.76
In an era of UEFI firmware, TPM chips, and remote management, the simplicity and power of the HMD seem almost dangerous. But for those of us who restore ThinkPad 600Es to run Windows 98 SE, or who need a T23 to drive a legacy industrial machine via a parallel port, Version 1.76 is indispensable. Later models (T60, X60, early Lenovo ThinkPads) moved
He looked at the diskette label again. Version 1.76. Safety and Compliance IBM and Lenovo Hardware Maintenance
The HMD diskette image is a standard 1.44MB raw image file (usually named HMD176.EXE or hmd176.img ). Here’s how to get it running.