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 ...

Joe's first real experience with tech came at the tender age of six when he started playing Final Fantasy IV (II on the SNES) on the family's living room console. As a teenager, he cobbled together ...

Do you get the error message “No SIM Card Detected” or “No SIM Card Installed” after inserting a SIM card into your phone? This problem often occurs when you ...

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 ...

A SIM card, or subscriber identity module, is a small card in your cellphone that lets you place phone calls, send text messages, and more.