My iPhone 4 has recently stopped showing up in itunes. It was working perfectly before and I dont know what could have caused this. I have tried to: Restart iphone Restart computer Re-install itunes Changed USB cable Used different USB port Did a system restore on my PC But none of these have worked . I connected the phone to a different PC and it showed up, so I am not sure what the problem could be. I have also put the phone in DFU mode and it showed on my computer. Is there any other way to fix this?