8 Replies Latest reply: Mar 14, 2012 12:24 AM by osirusck
KL.Andrew Level 1 Level 1 (0 points)

Hi, I have problem with sim card on iphone 4S after upgrade to 5.1 it always said after a while invalid Sim . Do you know how o fix it ???? i tried restre didnt help .... pls need hel

iPad, iOS 5.0.1