This is very weird, the “OK” button on my MX3 Airmouse failed the other day, so I took the easy option and ordered another one exactly the same which came yesterday. The first thing I discovered was the new MX3 won’t work with the dongle for the old MX3, swapped them over and everything worked fine except for powering on so I “cloned” the power button setting from my old MX3 to the new one thinking everything would work fine, it doesn’t. I don’t remember having to program the old MX3 at all, I think it worked straight out of the box.
I have spent the last few hours going through every guide I can find and nothing seems to fix the issue. Can anyone with a bit more experience of the MX3 shed any light on this?