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 ...

You generally can't use an Apple iPhone on a cell network if it's never been activated with such a network, although once it is activated you can remove your SIM card or simply never connect to the ...

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 ...

iPhone 14 models require eSIM rather than physical SIM cards. That means those getting Apple’s latest handsets have to activate them via eSIM – they can’t simply plug in a SIM card to get connected to ...

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 ...