The iCloud Activation Lock is a security feature designed by Apple to prevent unauthorized access to your iPhone if it's lost ...

How to unlock an iPhone on T-Mobile Once you've met all the ... T-Mobile's Device Unlock app T-Mobile customers with an Android 7 device or newer can request a code that unlocks your phone through ...

But in the U.S. iPhones tend to be tied to a particular network, which can make moving networks, handing an older handset down to a family member, or selling a used iPhone tricky. How to unlock an ...