What the heck is this?
Isn’t SOS like a call for help? What does this do in simple words?
iPhone 13 Pro Max, iOS 16
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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