R-SIM AIR2, which perfectly supports IOS7.1 of Sprint, ATT, T-Mobile, Cricket etc, is coming soon. This is the firstunlock card for IOS7.1 of Sprint all over the world. At the meantime, it is general work on IOS6.X-7.X of 4S/5/5C/5S. Detail information will be released on our web: <Bạn vui lòng đăng nhập hoặc đăng ký để xem được nội dung này!> please pay close attention.
