If your iPhone says there's no SIM or that the SIM is ... If the SIM card isn’t damaged, and the phone has all available updates installed, then the next step is to contact the phone carrier.

On an iPhone, the message will say “No SIM” in the status bar next to empty network bars, and a “No SIM Card Installed” or “No SIM available” message will appear in a pop-up and in ...

However, if you don't have service, or if your iPhone doesn't have a SIM card, you won't be able to see this detail. However, even without a SIM card or network connection, you can easily find the ...