I’m working on a Lenovo ThinkPad P15 Gen 1 (Machine Type 20ST-004DUS), and recently replaced the motherboard (planar).
I successfully booted into the Golden Key U1 Tool (v3.5.78), and it launches ThinkPad Maintenance Utilities v1.20(x64) — but my version appears to be missing the full Set System Identification menu (it only shows Add/Read/Delete S/N options).
Here’s what I’ve already done:
- The EEPROM has been initialized successfully
- The U1 tool loads and detects the ThinkPad fine
- The current MTM/SN/UUID fields are blank
- When trying to enter