Disassembly
To start with remove the foot (if fitted). A single screw holds it in place.
This should reveal two screws one of which might be covered by a 'Warranty void...' label.
Remove these two screws.
At this point using a flat bladed screwdriver or similar you can carefully work round the edge of
the case to remove the side panel.
I would recommend starting on the edge where you removed the two screws.
That's it!
