A new notification icon appeared in the upper right corner. It is immediately to the left of the WiFi signal strength icon. It is a black square with what you might call a capital N in white. Both vertical parts of the N has its own diagonal line [best description I can give]. If I pull down the notification area and expand it to full screen the icon is not displayed so there is no explanation of what the icon represents. I searched online through Android notification icons and can’t find an explanation.
That’s it. Thank you.