IBM THINKPAD S05L-1270-01 - Manual (Page 174)

Note
Be careful not to remove the Esc key when you
remove the frame. If the Esc key is removed,
replace it as shown.
When replacing the frame, check whether the
click buttons of the TrackPoint III can be pressed
correctly.
If the frame is not in place, the click buttons will
not work.
162 IBM Mobile Systems HMM