I guess NFC is one of those things that don’t work in waydroid, right? I would have a use case there (authentification with a Yubikey).
Does this mean you have it working? Or does it “just” mean you found a clue how to fix it?
Btw, I asked ASUS again regarding the unlock tool and they answered that the maintenance of the app and the server is still ongoing and that they don’t have a date for when it will work again. I am asking myself why the maintenance of a server can take as much time as writing a bachelor’s thesis and if that is due to the fact that they use ASUS hardware for hosting their server 
Not very encouraging…
But on the other hand: I explicitely asked whether it is still the plan to re-enable it and they didn’t say “No”, so maybe there is still hope? Time will tell.