I tried to install viper4android with your method on my SM-920C Note 5 - ROM Nougat NN9
(Android v7.0) but the driver seems not working.
So I tried to uninstall them via the app menu and reboot system but when I open the app again v4a doesn't prompt me to install the drivers, they seems installed but not working.
I've Magisk v14 installed.
Any suggestion? Ty in advance
nevermind, I managed to get it working, my kernel was set to "enforced", setting it to "permissive" did the trick