When a smartphone failed to detect the SIM card, it’s either due to a software glitch or could be an indication of a damaged SIM card or SIM card tray. Generally, the problem is either on the software ...

When your phone doesn’t recognize the SIM card, chances are that the SIM card might be dislodged, not compatible, or worst, damaged. There are also other instances where SIM card errors are triggered ...

Imagine trying to call someone urgently from your Android device only to be greeted by the error message "SIM card not detected." This error means that your device is ...

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 ...

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 ...

The SIM card in your iPhone is crucial to your making calls, but it's also small enough to lose, and easy enough to put in the wrong way. Here's how to successfully remove a SIM card, and put one back ...

Changing carriers can be exciting. You might get to pick up a new phone, or maybe you want better coverage in your home area. Either way, you have to know how to get set up. Each carrier tackles SIM ...

The newer eSIM technology, which is quickly becoming the standard on high-end phones, is safer and more convenient.