Iphone 3GS no longer connects to computer or Itunes.

I have a decomissioned Iphone 3GS that I've been using as an Itouch (I don't use the phone features). Up until today it would connect to my computer and Itunes with no problems. When I had to uninstall a bunch of stuff and reinstall the new Itunes (the update is what screwed everything up) since I had a C++ runtime error R6034. Now I finally have Itunes again however my Iphone no longer wants to connect to my computer or Itunes. There is no beep from the USB no syncing, nada. The only thing it does is charge...which is only sort of helpful. I've tried two different cables, restarted my computer, restarted my Iphone. I just want it to connect so I can get my new music. Does anyone have any suggestions. Preferable if I didn't have to restore my Iphone.