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Send SOS Messages on Your iPhone When You Have No Cell Service. Here's How
Emergency SOS is a way to signal first responders when you need help by sending text messages via satellites. The same ...
Why does my phone say SOS? Here's what the emergency message means on iPhones
Apple Support says if you see "No Service" or "Searching" in the status bar on your iPhone or iPad, your device isn't connected to a cellular network. If you see "SOS" or "SOS only" in the status bar, ...