Although cell phones have changed significantly in the last few decades, they still need a SIM. Some phones have moved to eSIMs, but many still use physical SIM cards ...

For many years, mobile phones received cellular service through a physical SIM (subscriber identity module) card that connected your handset to your phone carrier. These physical SIM cards made it ...

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 ...

Cingular mailed me a new SIM card with a letter stating that I should take out the old chip and put in the new one. So I took out the old one, put in new one, called to activate it, and the phone ...

Whether you've recently added a new line to your Android phone for faster internet or gotten a new work SIM, a "SIM Not Provisioned" error message can disrupt your ...

How do you get the data off your phone if you have accidentally dropped it and smashed the screen? Find out what's possible and what isn't.