I’ve actually seen a model of this same mouse where optics sensor is MODULAR with a ribbon cable. So much better for repairability!

I don’t have this mouse, but an LX8 Cordless Laser Mouse. It looked quite similar so gave it a go, and presto! It opened up easily, I could get to all the internal bits quite easily and removed years of cat hair, tobacco grains and human oils which had formed felt mats around the moving parts and gummed it up completely! Now factory fresh and restored to full function - couldn’t be happier! Thanks Xavier!

It says the video is private.

The video is private. But the instructions are good without the video.

Note that the front-side of the mouse has tabs that hold the pieces together, so mate the front of the mouse (the button-side) before mating the end closes to the batteries (and the screws)

Thanks! It would be great if you showed how to take the wheel out - it has to be pried out of its seat in the front of the mouse. FYI for cleaning it only takes steps 1 thru 8 plus taking out the wheel.