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 ...

Have you ever gotten a new phone only to find out it’s locked to a specific carrier? This often happens when you purchase a subsidized phone from a carrier. The carrier locks the phone so you can’t ...

The programmable Apple SIM, today for the new iPad Air 2, gives users the freedom to move from one wireless carrier to another -- in theory, at least. Love Apple or hate it, you can't deny the company ...

One common issue that some users face is their new phone not accepting their SIM card, requiring an unlock code. We will cover various methods to obtain the unlock code and troubleshoot your SIM card ...

Switching to a new cell phone service provider can save you hundreds of dollars per year—and there’s no need to ditch your current phone to do so. To make the move, though, you may have to first ...

(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 ...

The major telecommunication companies in Bangladesh and their smaller peers are in a debate over whether they should be allowed to lock all SIM slots when selling smartphones on instalment plans. SIM ...