The "devices" appear to be named by default by the type of device. The "manage your devices" product key seems to appear nowhere on the device itself. On the device, opening "Norton Mobile Security" and "About" shows a version and a serial number, but neither of these appear or seem traceable in any way to the info in the device manager.
How do I figure out which device with the useless name "samsung_SM-G900V" of which I have several aligns with which device?