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 ...

The sim card that exists inside your phone is what connects your phone to your specific cellular network. For most of us we might not even realize it’s there. When we get a new phone from our carrier, ...

An unlocked phone is the key to getting service from an alternative carrier. Here's how to check if a phone is unlocked.

1) a Straighttalk iPhone SE (carrier locked) that came from the carrier with a Verizon-tower SIM card. 2) a Straighttalk ATT-compatibe SIM card. I would definitely assume so. The phone might also have ...

Michelle Starr is CNET's science editor, and she hopes to get you as enthralled with the wonders of the universe as she is. When she's not daydreaming about flying through space, she's daydreaming ...

Jason Cipriani is based out of beautiful Colorado and has been covering mobile technology news and reviewing the latest gadgets for the last six years. His work can also be found on sister site CNET ...

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 ...

Recently, Visible expanded the ability to convert your physical SIM card provided by the carrier to a sleeker and virtual eSIM. Since Visible now supports eSIM conversion on the Pixel 6, I figured I’d ...

After the anti-climactic Apple event yesterday, the tech community at large took a nap –which is why news seemed to slip between the cracks telling us Apple has built a SIM card that allows users to ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

Determined to reduce space requirements in GSM telephones and PDA terminals, the SCX series surface-mount subscriber identity module (SIM) card connectors with carrier trays sport what is said to be a ...