The middle trackpoint button of my keyboard stopped to work (it has to be pressed very hard). I took picture of it showing what exactly was broken.
Notice that the black plastic part got separated from the base metal plate causing the middle button stopped to work.I just want to share it because it might be a quality issue.
I contacted local Lenovo service and got a new keyboard replacement. Unfortunately it is different (compatible) part number. The new keyboard 45N2219 has much more soft feel than the old one 45N2149