To remove the SIM card from your iPhone, you'll need to eject the SIM card tray with a special tool or paperclip.

Changing physical SIM cards on your phone is always a fiddly business. First, you have to root for the little SIM tray tool that Apple includes in the box with its new iPhones – except those in the US ...

You're probably already familiar with the SIM card, a tiny chip in your phone that connects it to your cell phone carrier of choice. For years, this chip was on a physical card that you could swap in ...

If you need to find out your iPhone's carrier without a SIM card installed, you can do so through the Settings app.

The iPhone Air will only have an eSim - will other phone makers also shift away from the familiar - but fiddly - plastic ...

Have you found yourself unable to send or receive messages on your iPhone? Or are iMessages being sent from your email ...