SIM card errors in mobile devices may be attributed to software glitches or hardware damage. In most case, such error occurs among other random system issues ...

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 ...

Setting up and activating a new iPhone is usually a very smooth and straightforward process. But occasionally, there can be an odd hiccup here and there, especially when your iPhone says there’s no ...

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

Although cell phones have changed significantly in the last few decades, they still need a SIM. Some phones have moved to eSIMs, but many still use physical SIM cards. If you have a working phone, ...

A pair of severe security problems in millions of SIM cards should be easy for operators to fix, according to the German security researcher who found the issues. Karsten Nohl of Security Research ...