Just got a Ti2 in the mail this afternoon for my wife, she likes mine so much thought i'd get her one. Waited three weeks for it to come from China and it doesnt work. Tried my ti2 head on her body and it works, so Im assuming theres something wrong with the head. I'd like to try fixing it if possible instead of having to wait three weeks for another one. Anyone know how to take the head apart to look it over or are these glued together? What might possibly be keeping it from functioning?