Hi, I managed to get the serial number of my new iphone 5s tmobile (contract free). I called up Apple care and they said this phone with my serial number is locked! They also said I'd have to contact tmobile to unlock it! So I guess I'd have to return it and buy the UNLOCKED Iphone 5c instead. ---------- I got the new serial number from supportprofile.apple.com btw. The unit is not yet received!