Activate your iPhone back to AT&T if the SIM card you insert after you install blackra1n onto the device doesn't work properly. Blackra1n is a third-party program that "jailbreaks" SIM-bearing iPhones ...

We previously reported that a tiny handful of iPhones shipped without SIM cards, while significantly more units have generated the error message "No SIM card ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...

Facilitating communication between countries has been significantly simplified as a result of the wider use of eSIM.

eSIMs are catching on with carriers, even budget-minded providers like Cricket Wireless. Assuming you’ve got a compatible phone, here’s how to activate a Cricket eSIM, transfer one to a new phone, or ...

If you’re a Comcast customer, there may be a solid incentive to switch your phone service over to Xfinity Mobile. And if you have an eSIM-compatible phone, chances are you want to take advantage of ...

Apparently numerous people are facing difficulty activating their new iPhone X, so if you are experiencing that you aren’t alone. But, activation issues aren’t limited to the iPhone X. There have been ...