So my first gen iPhone is pretty messed up. It has a cracked screen and broken speakers and mic. Touchscreen and Headphones work though. So I wanted to know if I could get a replacement. Would I be able to just walk in to an Apple Store and hand it to them and receive a replacement? This is my first Apple product so I don't really know anything about their services and stuff. How much would a replacement cost? Do I have to give them any information? I heard they ask for your ATT sim card or something. I don't have an ATT sim card since my mom bought it off some guy on ebay over a year ago. I received it unlocked and jailbroken. Also, would a restore be able to hide the fact that it's been jailbroken? If I do that I wont be able to use it since I don't have a sim card.