When i plug my iPhone to my computer and try to restore it, it comes up with error 1611 and says it cannot restore, and then i realized it keeps turning off and then back on while trying to restore it, the phone is in dfu mode, i have tried on 2 different computers, and have used 3 different leads, i have uninstalled and installed iTunes and did updates and made sure all security programs are compatable, i cant get into the phone at all to manually install it either,all i get on the screen is the picture of the itunes symbol and a iphone cable, tried so many things 