As smartphones have become more pervasive in our lives, we've all kind of been forced to pick up basic knowledge and terminology over the years. Where previously certain jargon would exclusively be ...

If you've ever called your carrier's customer service to activate a prepaid SIM card or troubleshoot a malfunctioning Android SIM card or iPhone SIM, then you've likely needed your ICCID number. The ...

"I failed yesterday, so I lined up early to replace my SIM card before going to work." On April 29, in front of an SK Telecom agency in Jung-gu, Seoul, people were waiting from 8 a.m. on the second ...

In short, if the government and mobile operators chose to meaningfully address the prevalence of untraceable SIM cards, it ...

If you’ve bought an iPad with 4G/cellular capabilities (we discuss whether that’s a good idea in our 2015 iPad buying guide) or a new iPhone, you need to buy and install a SIM card. Here, we explain ...

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another. I started my career with CNET all the way back in ...

Seeing a “No SIM card detected” error on your Samsung Galaxy S9 can be incredibly frustrating. It prevents you from making calls, sending texts, or accessing data ...