What does this error mean?
Type the alert, error code or describe the symbol you see. Osnivo shows what Apple says it means and what Apple says to do — word for word, with the source.
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Symbol
"SOS" or "SOS only" in the status bar
SOS
If you see "SOS" or "SOS only" in the status bar, your device isn't connected to your cellular network, but you can still make emergency calls through other carrier networks. This feature is available in Australia, Canada, and the United States.
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Symbol
"No Service" or "Searching" in the status bar
No Service
If you see "No Service" or "Searching" in the status bar on your iPhone or iPad (Wi-Fi + Cellular), your device isn't connected to a cellular network.
Every meaning and step is quoted from an Apple Support article; Osnivo writes only the titles. Errors often come with a step-by-step fix in Osnivo Fix.