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 ...

We may earn a commission for purchases using our links. Learn more. Using a standard SIM card in your GSM (and some CDMA) BlackBerry is pretty easy to grasp at this point. Most come pre-installed if ...

Despite its low profile, your phone's SIM card tool kit (also known as STK) is one of the most important things on the device, and whether you realize it or not, you probably use it every day. Built ...

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 ...

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.

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 ...