How to update the Machine Type and Model (MTM), System Serial Number (SN), or System Brand ID of system BIOS menu – ThinkCentre, ThinkStation - Lenovo Support US
ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual
How to Change Serial Number, Type, Model, Lenovo Thinkpad || T480 || T490 || Core Services - YouTube
Download Software & Utilities – Support Site
Using the Lenovo System Update Tool | Technical Support Services
Download Software & Utilities – Support Site
Use A Golden Key U1 Tool To Flash-Write Key Id Information; Remove The Upper Case - Lenovo IdeaPad 3 Series Hardware Maintenance Manual [Page 70] | ManualsLib