If you purchased your phone through a carrier, it may be unlocked. There are a few reasons carriers lock phones to their networks: This is, by no means, an exhaustive list, and carriers change ...
You’re no longer dependent on what your carrier sells, because you can easily buy unlocked phones from all over the world. But what exactly are the differences when you look at unlocked phones ...
Quick tip: If the phone is already unlocked, T-Mobile's site offers a guide for using the phone with other carriers. How to unlock an Android phone on T-Mobile The process will vary slightly ...