If you’ve ever bought a second-hand iPhone or switched to a new carrier, you may have faced the frustration of a locked device. Carrier-locked iPhones prevent you from using SIM cards from other ...

You could access numerous useful iPhone features by typing in a few secret codes on your device. Lots of the codes work whether you have an old or new iPhone and they can let you do things like ...

Wondering whether that iPhone you plan on buying off of craigslist is truly unlocked like it says in the ad? Want to make sure that your iPhone is able to switch carriers after a legitimate unlock ...