Usb not working?
 

I got 2010 xd , no meter what I plug into the USB port, noting seems to be happening I plugged Classic iPod, iPhone 4s, Sansa fuse mp3 player and so on and noting works or indicates that any connection is established. No reaction what so ever. It is like the port is there , but no wires behind it. Does anybody has an idea what is going on ? Thank you !