Mas stick problem

my mas stick just broke yesterday. For some reason whenever i touch the surface of my mas stick it keeps doing the high punch button. i tried opening up the stick to see if a wire was like crossing something, but they all were neatly tapped on the top of the stick. i really dont know, maybe i burned out a switch or something. my mas stick is about a year old so it might be that. any solutions? thanx.

Could you take a picture of the guts? I know MAS solders all of their stuff, so i doubt there would be a loose wire, unless you like to fiddle around with the insides alot.