I have had no problems with my xbox had it since the kinect first came out since then i played with power packs on my controller and the for some reason it stopped connecting after that a bought a wired controller used that then soon didn't wanna work either then i said ah what the hey i bought a another wireless controller worked for a bit then battery pack stopped working so switched to rechargeable batteries now controller does not turn on what so ever no power no sync nothing i tried with a power cord nothing fresh batteries nothing. Tried power cycling the xbox and nothing i am at a loss now way to controll my xbox i am losing my mind and keep in mind i have only had this $64.00 controller for 3 months