SIM cards are important to connect your phone to its network. Here's how to remove and insert SIM cards on your smartphone.

Insert the end of the straightened paper clip or Apple SIM removal tool into the pinhole. This will begin to push the SIM tray containing the micro SIM card out of the body of the phone.

You don't need to buy a new iPhone to be able to run multiple SIM cards. In fact, you can run as many as five SIM cards in your existing iPhone.

Regular and Micro-SIM cards are too big for the iPad or iPhone, but this trick enables you to cut down a SIM card to a Nano-SIM so it fits into an iPhone or iPad.

Activate your iPhone back to AT&T if the SIM card you insert after you install blackra1n onto the device doesn't work properly. Blackra1n is a third-party program that "jailbreaks" SIM-bearing ...

SIM cards are important to connect your phone to its network. Here's how to remove and insert SIM cards on your smartphone.