Your Phone is Not Registered on a Network?
If you are a Samsung smartphone user then, your phone is not registered on a network error that is not new for you. Thus, if you want to resolve this issue then follow these steps without wasting any time.
1. Restart your smartphone device.
2. Turn off and on airplane mode
3. Manually select your network.
4. Re-insert your SIM card after removing it.
5. Install an updated operating system