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 ...

In this guide we’ll show you how to SIM unlock the Galaxy S9 so you can use it on different carrier networks. That way if you bought the Galaxy S9+ from AT&T, you can still take it to T-Mobile if you ...

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 ...

This quick guide will explain the many different ways to SIM unlock your Galaxy S7 or Galaxy S7 Edge. Whether it’s to use it on another carrier with a lower monthly bill, international use, or to sell ...

You can switch to another wireless provider without buying a new phone. Here’s how. By Courtney Lindwall Switching to a new cell phone service provider can save you hundreds of dollars per year—and ...

So you purchased a phone from Boost Mobile, whether from the store, or off the shelf. Now, you’re headed to an area where the signal on the carrier isn’t so good, or you’re looking for more affordable ...

The way most people get their cell phones unlocked today is that they call their wireless provider and ask for an unlock code. If certain criteria are met, the carrier provides the unlock code. The ...

ZDNET's key takeaways Use these codes to forward calls, pay your bill, check balances, etc.Some of the codes work only on ...

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 ...