1.work with and without jail break,support wide range sim card from ISP,no singnal lose. 2G/3G switch well,3g,edge facetime all work well;
2.each to plug and take
3.support bands:01.59.00 02.10.04 03.10.01
4.support all locked phone,including japan,amercian,and korea
1.turn off phone,put thie sim and your micro sim ,turn on the phone and put the sim in socket immecatelly;
2.click confirm for the window of phone,and wait for 15 seconds come to next step;
3.wait for 15 seconds,call sos no. 112, and cut this at once( in 2 seconds),after return to widow of dial,then enter to setting mode and enter air mode
4.leave air mode and wait til the singnal appear,then can enjoy now!