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 ...

Drug dealers. Cheating spouses. Spies. They can all benefit from Ready SIM, a SIM card that self-destructs–well, kind of. The prepaid wireless service, which leverages T-mobile’s network, collects no ...

A few years ago, the absence of dual SIM in iPhone was listed as a major shortcoming by numerous smartphone users. It’s normal for most smartphone owners to have a couple of SIM cards to keep their ...

If you've just got your hands on a shiny new Sim card, congratulations. Switching your Sim (the chip that dictates your allowance) can unlock huge savings. Now comes the crucial step of activating it ...

SIM binding is a process where a messaging app verifies that the registered SIM card remains active in your device. If the SIM is removed, replaced, or deactivated, the app will stop functioning.

AT&T has confirmed in a statement that the new universal Apple SIM card in iPad Air 2 and iPad mini 3 becomes locked to the carrier after being activated on its network. It appears AT&T might be the ...

It was discovered on Friday that AT&T is dedicating the new multi-carrier Apple SIM included with the iPad Air 2 and iPad mini 3 to its network, forcing buyers to obtain a new one when switching to ...