I just bought an iphone 3gs second hand and decided to restore it. I knew it was jail broken, but I didn't now factory restoring it would hurt it and possibly ruin the phone. I didn't sync it to my itunes because I was going to do that after I had gotten all of the previous things off of it, including the jailbreak. Now it has been 4 hours of the start up apple menu and I am freaking out. It will stay on the same screen, but still use up energy because it keeps dying and then rebooting, probably because its using too much energy obviously. How can I get my itunes to recognize it so I can put it in DFU mode? What do I do? Is there any hope left?