Elfen said:

Interesting that is was the cable at fault killing the trackpad/mouse button. Could have been that the cable worked its way loose?

Click to expand...

 Unfortunately, because I swapped out the whole assembly, I don't know this.

It may have been the button (although mechanically it seems hard for it to fail) or the cable, as there was a small damaged looking section of it, although it was on a differerent trace from the button mechanism.