Seeing 'SOS' or 'Emergency Calls Only' on your phone screen can be alarming! But don't panic just yet. It usually means your phone has lost its connection to your cellular network. Several reasons can cause this.
The most common culprit is a weak or non-existent signal. This can happen in remote areas, underground, inside buildings with thick walls, or during network outages. Sometimes, a simple reboot can reconnect you. Try turning your phone off and on again.
Another possibility is a problem with your SIM card. Ensure it's properly inserted. You can try removing and reinserting it. In rare cases, a software glitch can trigger SOS mode. Check for software updates and install them if available. If the problem persists, it could be a hardware issue or a problem with your carrier. Contacting your mobile provider is the best next step to diagnose and resolve the issue. They can check your account and identify any network problems in your area.