Bought the iPhone 5, currently on a iPhone 4 but I'm selling it and I won't have it from Tuesday - Friday. I was wondering if you guys can any idea how I can transfer it for it to work on my 3GS? Would AT&T transfer it onto a SIM for free?
at&t can only transfer the data on the sim card. so if your looking at saving contacts etc then you need to back up your 4 in iTunes. but, make sure your 3gs has the same firmware like 5.1.1 then you can transfer everything over. but at&t can transfer any contacts on your sim card that where there from other sim cards from phones you had in the past that where not iPhones.