My iphone 14 pro max keeps saying SOS

SOS means that your phone is working, but is not connected to your carrier’s network. It can only make emergency calls on other networks. You need to contact your carrier to resolve this. Here is guidance from Apple→If you see No Service, Searching, or SOS on your iPhone or iPad

Hey AshB0715,

To learn more about how iPhone SOS works, check out this article here: Use Emergency SOS on your iPhone

If you continue to experience the same issue, try restarting the device and see if it helps: Restart your iPhone

Let us know how it goes!

Best regards.