Press and hold the side button and one of the volume buttons (either work) until the Emergency SOS slider appears. Drag the ...
In short, when you see SOS on your phone, it means you're not connected to a cellular network. "If you see SOS or 'SOS only' ...
Luckily, there's a simple solution here, one that Verizon shared in its post about the outage's resolution: restart your ...