Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

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 ...

While most people seem to manage just fine with a single SIM card in their smartphone, some -- especially travelers, who can save money by fitting a local SIM card into their handset -- love the ...

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 ...

Running a business requires you to stay connected to the outside world, and one way to do that is by having a smartphone. IPhones are often used for this purpose, but they are useless if you can't get ...

A Switzerland-based smartphone solutions company called SIMore has developed a new multi-SIM adapter that lets people make use three SIM cards in smartphones that support a single SIM. Apart from the ...

Apple’s latest iPhone Air has taken a bold step forward in mobile technology – it’s an eSIM-only device. That means there’s no slot for a physical SIM card, anywhere in the world, including India. For ...

Apple's recent update to iOS 5.0.1 may have been designed to deal with intermittent "No Service" and "No SIM Card Installed" iPhone 4S messages, is being pushed to iOS 5 users who haven't upgraded to ...