A Chinese user managed to install a SIM card tray on an iPhone Air by embracing a hardware trade-off. Here are the details.

A Chinese tech shop has done what Apple chose not to: add a physical SIM card slot to the iPhone Air. There’s a catch, though ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...

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 ...