AirMirror not working

I am using a Note 3 N-900A , computer is a macbook pro
it says my device is not supported but after doing a bit of research it seems that other note 3 users are using it . Also it did not ask for permission on super Su like the help form said it would .

Also how do you update a rooted device im running on 4.4.2 and when i try to update it fails .

actually i just granted it permission but it still does not work

@jeremiahlukus
Sorry, most of the Samsung devices can't use AirMirror currently. We are still improving AirMirror. Please stay tuned