I iMore Question Apr 9, 2016 #1 My iPhone 6 update to 9.3.1 and my SIM card not work and sim not valid message popup on screen.
Branta Retired Network Moderator Oct 2, 2012 290 0 0 Visit site Apr 9, 2016 #2 Eject the SIM and reinsert fully home. If that doesn't work try power off and reboot. If still no good try the. SIM in a different phone or a known good SIM in your phone. Finally contact your network and try a new SIM.
Eject the SIM and reinsert fully home. If that doesn't work try power off and reboot. If still no good try the. SIM in a different phone or a known good SIM in your phone. Finally contact your network and try a new SIM.