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 ...

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 ...

Looking for solutions about your #GalaxyNote5 issue? Our post today may give you an idea on what to do. We’ve published many other Note 5 posts before. Here are the specific issues addressed on this ...

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 ...