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

You can activate a new or used iPhone for use with a cellular service provider in a few steps. Here's how to activate any iPhone, or troubleshoot it.

Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is a seasoned multimedia journalist with more than a decade's worth of experience producing stories for ...

A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...