If you see SOS only on your iPhone, it indicates that although it is not currently linked to the cellular network of your carrier, it is still capable of making emergency calls. Even emergency calls are not accepted in, “No Service”. SOS only mode is different from this. Read this blog to find the best way to resolve how to get SOS off iPhone issue, use the following methods listed below.

1. Consider relocating to an area with a stronger signal.
2. Give your iPhone a restart.
3. Adjust the Airplane Mode's settings.
4. Look for updates from your carrier.
5. Remove and reinsert your iPhone's SIM card.
6. Speak with the SIM card provider.

These will remove the SOS mode turn off from your iPhone.

It is good that we can discuss such topics and learn new points of view.