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

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 ...

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 ...

Stephen is an author at Android Police who covers how-to guides, features, and in-depth explainers on various topics. He joined the team in late 2021, bringing his strong technical background in ...

TL;DR: How do I know if my phone is unlocked? You can contact your carrier to see if your phone is eligible for unlocking. Another way to check is to insert a SIM card from a different provider. If it ...