When your phone shows a SIM card not inserted error, it’s either telling you that the SIM card doesn’t have secure contact with the slot or something in the phone system is preventing the SIM card ...

When your phone fails to read or recognize the SIM card, it will give you an error message saying so. Among the pertinent errors to show up would include No service ...

Today’s Android phones are significantly more advanced than they were just a few years ago, but one thing hasn’t changed: the need for a SIM card. Every phone needs a physical or eSIM card to make ...

Whether you've recently added a new line to your Android phone for faster internet or gotten a new work SIM, a "SIM Not Provisioned" error message can disrupt your ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

Some owners of Apple's new iPhone 4S have been hit with SIM card error messages, even if they are connected to a CDMA carrier that does not use SIM cards. One reader ...