iPhone USB Receiver won't allow iTunes to restore

My iPhone 4 (5.1.1 OS) won't go into recovery mode and is stuck in DFU mode, even when trying to hold the home and hold buttons for ten seconds, letting go of the home button and holding the hold button. Every time I try to restore in iTunes, it will prepare the iPhone for restoration, and will immediately give me a 1600 or anything between 1600-1604 error (USB disconection errors) when I never physically disconnected it. I've tried it on multiple computers and multiple USB cables.

iTunes does not recognize the phone unless it is in DFU mode, and my phone will not go into recovery mode.

I'm passed the desire to get my full backup onto the phone now, and would like to at least just have a functioning phone so I don't have to spend another $200.

Thanks for all help.