not registered on network

An increasing number of Android device owners appear to be experiencing problems connecting to the carrier network since their SIM card is unable to connect to it. This problem has been bothering certain Samsung Galaxy device users for a while, and it's also impacting some Android device owners from other manufacturers. If you're one among them, this guide to resolving the not registered on network on an Android phone will come in handy https://techcrazee.com/not-registered-on-network/