Removing a SIM card from your phone can sometimes seem like a daunting task, but it is a relatively straightforward process that can be necessary for various reasons, such as switching carriers, ...

You're probably already familiar with the SIM card, a tiny chip in your phone that connects it to your cell phone carrier of choice. For years, this chip was on a physical card that you could swap in ...

If your new phone no longer supports SIM cards, or you don't want to use them anymore, you can convert to eSIM instead. I started my career with CNET all the way back in 2005, when the (original) ...

The newer eSIM technology, which is quickly becoming the standard on high-end phones, is safer and more convenient.

Learn what an eSIM is, how to set one up, and why digital SIM cards are transforming mobile connectivity. Discover the best eSIM options for travel, iPhone, and Android in this complete 2025 guide.

The "No SIM Card Detected" error can be a frustrating issue for smartphone users, disrupting essential functions like making calls, sending texts, and accessing 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 ...

A dual-SIM setup lets you use one phone to make and receive calls and texts from two numbers. It's also super convenient and can save you serious cash when traveling. We show you how to use two SIMs ...