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.

Unlocking your cell phone lets you switch carriers without buying a new device. Consumer Reports explains how to do it.

Want to break your smartphone out of carrier jail? Here's a guide on how to unlock your phone so you can change carriers or use it while traveling abroad.

Running the software taps into a remote database of unlocking codes and transmits the right code to your phone. All told, expect to spend $15-60 for the cable and/or the license to unlock one phone.

According to Ofcom, nearly half of mobile phone customers who try to unlock their phone find it difficult, while more than a third of people who decide aga ...