HT201420: If you get an alert about the SIM card in your iPhone

Learn about If you get an alert about the SIM card in your iPhone
adua78
Level 1 (0 points)

Q: "No Sim" message on iPhone 4

My iPhone 4S displays "No Sim" AND I have the most up-to-date software - iOS 5.1.1.  Phone was working find 10 minutes ago, now can not use at all.  What now?

iPhone 4, iOS 5.1.1

Posted on Sep 2, 2012 1:44 PM