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 ...

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 ...

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 ...

If your Samsung Galaxy S24, S24 Plus, or S24 Ultra is not recognizing your SIM card, it can be a frustrating issue, but there are several troubleshooting steps you can take to resolve the problem.

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 ...