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 ...

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. If you have a working phone, ...

Are you trying to switch phones or carriers? You might need to swap SIM cards for that, and we can understand how confusing this process can be if you haven’t done it before. Today we’ll show you ...

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

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 ...

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 ...

Are you thinking of making the switch from a physical SIM to an eSIM? The good news is that you may be able to simply convert your SIM card to an eSIM from your device. We’ll walk you through the ...

The "SIM not provisioned" error occurs when your SIM card is no longer able to share information between your phone and your provider. The "SIM not provisioned for ...

Nida is a tech and telecom journalist with more than five years of writing experience. She graduated from the University of Toronto with a BA in journalism. You have more than one option for ...

Will was the Phones Editor at Android Police from August 2022 to May 2025, which usually meant his desk was covered in a dozen different smartphones at any given time. Prior to that, he was a news ...