You must write the .IMG file to a physical disk. Use a tool like or Win32DiskImager . Ensure the "Extra Quality" source file is exactly 1.44MB. 2. Booting the ThinkPad Enter the BIOS. Set the boot priority to "Legacy." Disable "Secure Boot" if applicable. Boot from your floppy or USB. 3. Entering Information Once the menu loads: Select "Set System Identification." Choose "Add S/N Data." Enter the 7-digit MTM followed by the Serial Number. Example: 2668G1U1234567 (MTM + S/N). Important Warnings and Safety
Modern Lenovo machines use a Windows-based utility for these tasks. However, vintage ThinkPad enthusiasts rely on Version 1.76 to keep older hardware running perfectly. You must write the
If you tell me which specific ThinkPad model you are working on, I can confirm if Version 1.76 is the right choice for your hardware. Boot from your floppy or USB