- MotherBoard Model
- LKM-1 WS MB 12291-2 48.4LO13 021
- Laptop Model
- W540
Hello, I'm having a problem: I don't know my BIOS master password, and when I try to patch my BIOS file with the Lenovo Auto Patcher, the NVRAM isn't detected. I have a Lenovo W540. Can anyone help me?