If you have a SIM card PIN enabled on your phone to access data on the SIM card, but you repeatedly enter it incorrectly, the SIM card may lock you out from further attempts. You can reset the SIM ...

Learn how to check if your phone is unlocked and, if it isn't, how you go about making an unlock request with AT&T, Sprint, T-Mobile and Verizon. Matt Elliott Senior Editor Matt Elliott is a senior ...

If you’ve had a smartphone for any amount of time, you’ve no doubt heard of the term “unlocking” your phone. And we’re not talking about your phone’s passcode to access the home screen — we’re talking ...

If you've struggled with getting your carrier to unlock your phone so that you can easily travel abroad -- or, gasp, switch providers-- today is an important day. As promised, seven US networks (AT&T, ...

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 ...