can not restore my new iPhone 4s
I cannot restore my new iphone 4s its a brand new one that i just got out of the box.. i get a message saying "Iphone has been disconnected " when it hasn't.. I just excahnged it for another one and i got the same message and i could not restore it either..
please help
thanks in advance
iPhone 4S, iOS 5, its brand new just got it out of bx