My old Samsung tablet SM-T713 runs on Android 7 and I cannot find a way to update it. On the Google Play store, I am told Norton 360 is incompatible with Android 7 devices. I just had an email from Norton re mobile protection which mentions devices running Android 4 so is it possible to install Norton 360 or not?
Norton now requires at least Android 8 to be able to install 360. As long as you still have 360 installed on an earlier Android version, you will still be able to use it. As soon as you uninstall it, you will no longer be able to install again.