iphone 1.1.2 cua ban da unlocked luc truoc dung khong?. Unlock bang cach nao?. Don gian hon, ban coi serial number phia sau cua iphone va xem coi noi duoc san suat trong tuan thu may.
Vi du dang sau serial number 7S7xxABCDE. Cai so xx la tuan san suat.