After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

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 ...

This guide explains how to SIM unlock the Galaxy Note 8 for use on another carrier. There are a few different ways to unlock a phone, and a few reasons many choose to unlock their device. Whether that ...

One of the promoted specifications on the new Apple iPhone 4S is the "world phone" capability, but it isn't quite the world phone that many international travelers who use GSM phones are used too.

If you recently purchased — or have plans to purchase – a phone in the Samsung Galaxy S line, the folks over a xda-developers have a pretty interesting tutorial up on their forums. The instructions ...

I had a nice breakfast with my friend Andy Abramson last week and he expressed his frustration with AT&T's lack of support for unlocking his old, contract complete Apple iPhone. Andy is an avid ...

If you’re one of the million people who’ve purchased an iPhone since the end of June, you probably signed up with Apple’s exclusive carrier in the U.S., AT&T, when you activated your phone. That means ...

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Click to viewWe have tested iPhone Sim Free claims and they work. It still not a process for the faint of heart, as it requires using command line-voodoo for the jailbreak and activation, but it works ...