Thanks, that's nice to know about the swappability. I don't know if my X220 keyboard issue is with the keyboard itself or on the motherboard side. I inspected

Thanks, that's nice to know about the swappability. I don't know if my X220 keyboard issue is with the keyboard itself or on the motherboard side. I inspected the tiny ribbon cable connector pretty carefully and didn't see any problems with it. The symptom was that a few of the keys stopped working, then more of them, and finally it seems all of them. Maybe I can try temporarily swapping in another keyboard. I think I have one that I can try.