hye..want ask..how much for change camera module on s4 i9505 at samsung sc?my back camera broke after droped it..when take pic,its show cracked lens..can i go to sc and tell that not my fault?because i just register ewarranty now,and my s4 doesnt have any dent or sratch to prove i have droped it..any possibility that they will repair its foc under warranty?

Does Samsung accepts trade ins? Planning to get the S4 and trade in my Galaxy W.