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 ...

Protect yourself against SIM swapping and more security threats by setting up a SIM PIN right now.

This SIM card unlocking post is presented by iToolab. iToolab has released a new tool designed to quickly and easily let you unlock your iPhone or other smartphone’s SIM card and even switch cellular ...

This is a user generated content for MyStory, a YourStory initiative to enable its community to contribute and have their voices heard. The views and writings here ...

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, ...

(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 ...

Safaricom users may have their SIM cards blocked because they forgot their SIM PIN. This happens if one enters the wrong PIN more than three times, with the SIM automatically locking. This is ...