Button fell out of Samsung Gear S2

I have a Samsung Gear S2 and the back button on the side of the unit fell out. The dinks at Samsung deemed it as "physical damage" (I'm a magician, so it can be considered damaged without having absolutely any signs of actual damage) and are avoiding it like the plague, like the good capitalists that they are.

Anyways. This is still a fairly new product, but does anyone know how the button is fixed into the unit? Like a gasket or something? The button and pin still fit into the unit and make contact with the solenoid (or whatever) inside the unit, but it will just fall out if faced with unfriendly gravity..