The No SIM card error may depict a possible software problem affecting the phone’s network functions particularly with the SIM card system. It can also denote a ...

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

SIM card errors in smartphones can occur among other symptoms of a software glitch like when installing new update with bugs. In other cases, hardware components are to blame including a damaged SIM ...

If the "your phone is not registered on a network" error has popped up on your Android phone, you know how frustrating it can be. Whether you want to call your family ...

If your SIM card is not showing a signal even after multiple fixes, then you need to try these solutions: If your SIM is old, bent, or frequently loses connection, it’s better to get a replacement SIM ...

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 ...

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 ...

If cellular data is not working on your iPhone, there are several ways to potentially resolve the issue.

Some owners of Apple's new iPhone 4S have been hit with SIM card error messages, even if they are connected to a CDMA carrier that does not use SIM cards. One reader ...