Great guide! I only had a little bit of trouble reassembling it. The top part is hard to "click back" into the rest of the body. I finally did it, but couldn't notice what made them snap together.

I'd note something else too: I detached the TOP of the ribbon cable and it was a pain to attach it back, as you have to hold the 'lid' too and holding everything is awkward. What made it easier was to remove the PCB fixed by 2 screws in the 'lid', then attach the ribbon cable and then screw the PCB back into place.

Cheers!

P.S.: Xe Roy, you might have to unscrew the body PCB to lift it from the rest of the body. Else the scroll wheel is stuck and impossible to remove.