Switching carriers or using a different SIM card on your iPhone doesn’t have to be complicated. If your device is SIM-locked, ...

The iPhone Dev Team have updated their redsn0w jailbreak and ultrasn0w carrier unlock tools to work with the iPhone 3GS, citing the release of rival app purplera1n as forcing their hand. The Team ...

Before you unlock your phone, though, make sure it's compatible with the new carrier's network. Verizon and Sprint use a standard called CDMA, and AT&T and T-Mobile use GSM.

The company may send you an unlock code or ask you to unlock your phone via a T-Mobile app. You can also have your phone unlocked by calling 611 from your T-Mobile phone or 800-937-8997.

Cellular carriers lock their networks on the iPhone you buy from their store or pay for via installments. Here's how to unlock your iPhone to switch carriers.

One week after President Obama signed a phone-unlocking bill into law, T-Mobile has responded by becoming the first American carrier to launch its own unlocking app. Modestly titled Device Unlock ...

Back in June, the Federal Communications Commission (FCC) has proposed a new rule, under which carriers will have to unlock your iPhone or Android smartphone within 60 days of activation. Two of ...

The contractless carrier just released a new phone, the Samsung Galaxy Avant, preloaded with its Device Unlock app. Right now, the decidedly mid-range phone is the only one to have this feature.