When an Android phone shows “Not Registered on Network,” it means the device is unable to communicate with the carrier’s ...

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 ...

SIM card problems can easily be determined by the error prompts and warning messages. Among the most common SIM errors that have plagued various Android devices ...

SIM card problems are few and far between but when they do occur, they can be some of the frustrating things to address. In this short guide, learn how to fix your ...

Do you get the error message “No SIM Card Detected” or “No SIM Card Installed” after inserting a SIM card into your phone? This problem often occurs when you ...

You may have had AT&T SIM (Subscriber Identity Module) card problems on your iPhone before or received the notification "Airtel SIM not provisioned." This happens sometimes, and the reason is fairly ...

LOS ANGELES: Have you found yourself unable to send or receive messages on your iPhone? Or are iMessages being sent from your email address instead of your phone number? If this sounds familiar after ...

The Subscriber Identity Module, or SIM, used with GSM iPhones does not affect network reception; however, if you're unable to connect to the network to send or ...

iPhone 4S users are reporting SIM card issues with their handsets. A thread about the topic on the Apple support site has now accumulated more than 200 posts and 30,000 views, suggesting that the ...

Ana* and her three-year-old son arrived at the shelter for migrant and refugee women in the northern Mexican city of Monterrey in early October. Every morning, the 14 women at the shelter — mainly ...

SIM cards have been an integral yet forgettable aspect of owning a smartphone over the past few decades. For most users, the SIM card defines the basic commercial relationship they have with their ...