An unlocked phone is the key to getting service from an alternative carrier. Here's how to check if a phone is unlocked.

There are two types of phones—those locked to a carrier and those free to use whatever carrier they want. There will come a time when you need to know which one your phone is. Thankfully, you'll have ...

It's not always easy to tell if an Android device is locked to a cellular/wireless provider, but there are methods to retrieve this information. If your device is locked, it will only take SIM cards ...