SIM ejector tools are quickly becoming obsolete as phones switch to eSIM. Before you toss yours, there's a surprisingly handy ...

Cellular providers offer all kinds of security and data encryption to their customers, but there's one task users should ...

SIM cards have been an integral yet often forgotten part of owning a smartphone for the past few decades. For most users, the SIM card defines the basic commercial relationship they have with their ...

Have you ever wondered exactly how a SIM card works? We’ll help you understand why your phone needs one and what they do to keep you connected. Image: TalkAndroid Editorial Note: Talk Android may ...

The SIM Toolkit app is the real connecting mechanism of your phone with cellular towers, and is a lifesaver in situations like international roaming.

Some owners of Apple's new iPhone 4S have been hit with SIM card error messages, even if they are connected to a CDMA carrier that does not use SIM cards. One reader ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Zoe Thomas: This is your Tech News Briefing for Tuesday, July 26th. I'm Zoe ...