Since I had issues with setting up of Norton Security on my Matricom G Box Q (an Android Tv Box), I suggest that the Norton team add the Android Tv Box devices to the list of supported devices. These devices are very popular and, with the streaming and all the addons for Kodi to install, there are serious security concerns.
Thanks to the help of SoulAsylum, I finally managed to set up Norton Security on my G Box Q after clearing the cache and changing the system language: https://community.norton.com/en/forums/impossible-configure-norton-security-android-tv-box.
Many chats with the Norton support agents before coming in have done nothing... The Norton Community has been more efficient. :-)