Invalid Sim Card Meaning. Subsequently the sim is rendered invalid. Sometimes using a card from a different iphone model or another smartphone manufacturer can.
Subsequently the sim is rendered invalid. You can't send or receive text messages, make calls, and do other things when this problem happens. Well, the invalid sim card error means that either there is no sim card on phone or it may be due to faulty connection or it is loose.
I also have an issue with an invalid sim card.
This means that the carrier can be unlocked from your iphone. The phone network unlock puk code is usually required if you have already unsuccessfully tried entering. — quoted from apple discussions. If you are getting, invalid sim card network locked sim card inserted error message after changing your network provider, then it can be fixed pretty easily via a call to your previous service provider.
