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 ...

Gently cleaning the SIM card and its tray can remove dust or debris that might be obstructing proper contact. Switching Airplane mode on and off can help reset network connections and prompt the ...

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 ...

Fixing calls that always go directly to voicemail on Android includes disabling Do Not Disturb, call forwarding, call barring ...