This is how to remove the magnet, from a 2019 post: "On the Inon Z240, D2000 and D180 (and probably other Inon's), the push button assemblies for the light and TTL, located on the strobe's back,  unscrew from it for access to the magnets, without having to open the strobe case. "Push the button in (don't turn it) and push a wire or a pin through the holes on the site to fix it. Than turn out the whole thing anticlockwise. This is by the way also the method to open the light switch butt