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

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 ...

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 ...

Verizon is one of America’s leading carriers, but it’s not for everyone. It could be due to the high costs or your local coverage, but sometimes you have to change. What if you love the phone you have ...

It is quite common for Android smartphone users that I forgot the password to their phone, so how to get into a locked phone? Or perhaps there is a used phone and don’t know its password. You may be ...

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 ...

Remember that scene in War Games when the socially broken code monkeys were explaining to aspiring hacker Matthew Broderick all about “back doors” (i.e. secret pathways planted by programmers)? Well, ...

Can any Vodafone phone be unlocked? The good news is that any Vodafone U.K. customer can unlock their phones. In fact, you may find your device already unlocked in some cases. What is Voxi? Vodafone's ...

AT&T this week sued three former workers, alleging they aided in the theft of cell phone unlock codes. Kyra Evans, Nguyen Lam, and Marc Sapatin, who all worked at AT&T's Bothell, Wash., site, are ...

Major cellular carriers — Verizon, AT&T, T-Mobile, Sprint, and others — typically lock their networks to the iPhone you buy from their stores or pay for via an installment plan. What does that really ...