Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone number that identifies your device on the carrier's network, whether it's ...

After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

(Subscriber Identity Module lock) A function in GSM cellphones that restricts the phone's use to a particular cellular carrier identified by a SIM card. SIM locks are used to ensure subscribers finish ...

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 ...

In this edition of Ask Maggie, CNET's Marguerite Reardon breaks down what you need to know about the carrier practice of locking phones. Marguerite Reardon started as a CNET News reporter in 2004, ...

'The Times of India' brings you 'Hack of the Day' — a new weekday-series of quick, practical solutions to everyday hassles. Each hack is designed to save you time, money or stress, using tools and ...

Sprint today clarified its policy on carrier-locking the SIM card slot on its iPhone 4S. Sprint's policy will be to lock the SIM card slot out of the box, so it will only work with a Sprint SIM card ...