If a phone shows You this fault Not registered on network , how do you solve it

To solve the "Not registered on network" fault on a phone, follow these steps: Verify your SIM card is correctly inserted by removing and reinserting it, then restart your phone. Go to your phone's network settings and manually select your mobile network operator. Check for local network outages with your service provider and update your phone's software if an update is available. Reset your phone's network settings (this will not delete your personal data). If the issue persists, contact your mobile service provider for further assistance. Send me the next one 📸