Started on one computer mouse needing a new AA battery. Then re-glued the foot pad that had fallen off and was making it rock. While vigorously testing the other foot pads, they came off, and so I ended up re-gluing them all.
Then went one to another mouse and started to clean some dust in the corners of it. Turned out the dust was enough that I had an excuse to take it apart. Then there was enough random tiny fibers/hairs that I couldn’t get off that I went to use the air compressor to really get it clean. And re-glued the feet pads here, because, why not.
With as much as I take apart my computer mice, it causes the factory sticky tape to fail. So I actually cut out an access whole where the foot pad covers the hidden screws. And then I can use gel super glue to keep the foot pads down fully without curling.
Nice, one of these days I’ll summon up the gumption to try getting in there and fixing it.
You need a #1 phillips, a #0 phillips, a soldering iron and accoutrements for desoldering and soldering 3 through-hole joints. There’s a screw under the sticker in the battery compartment; there are no clips holding the outer shell together, if it doesn’t fall apart under gravity there’s another screw somewhere.
Note the replacements will likely fail eventually too if you replace it with the same part number switch; there is a more appropriate switch for the task but don’t ask for the part number off the top of my head.