Hi, I have bought an used iphone 4s from a buyer on ebay and after receiving the phone i tried turning it on and it asked for an apple id and password(which obviously i don't have) , i tried everything till now, tried calling apple proving that i bought it from ebay, Nothing, tried calling the buyer on ebay to ask for the info and Nothing, so, any ways to get past this screen to get my phone up and running? i mean, i can't have just wasted 300$