When your Samsung Galaxy shows "not registered on network" error, it means your phone can't connect to your mobile carrier's ...

If you can't make a call or if you see an error message that your phone's SIM card is not working, there are several ways to ...

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 ...

When your phone prompts an error message pertaining to the SIM card, it could be due to a system error, a bad SIM card, or damaged network components on the phone ...

SIM card errors are some of the common problems on many smartphones. If you’re one of the unlucky users to encounter No SIM card detected error on your new Galaxy ...

Having calls fail on your iPhone is annoying, but you can fix it in several ways. Here's what to do.

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 ...