There are often very specific rules that you have to follow before you can unlock a phone. For example, the phone can't be ...
If you bought the phone directly from the manufacturer, you can be sure it's unlocked. Where did you buy it, and how? First ...
An "unlocked" phone gives you complete freedom from carrier restrictions. You can insert a SIM card from AT&T, T-Mobile, Verizon, or any other compatible carrier and start using their service ...