I have updated my samsung Note 3 neo to kitkat ( 4.4.2) . and my bad time started.
screen mirroring not working, auto brightness not working, display is not having clarity and many more problems.
I have visited to samsung repair center. they have once again updated my mobile software but after update they don't have proper equipment to verify that my screen mirroring is working or not.
then I talk to samsung customer support. after 10 to 12 calls and 15 days pursuing the answer I got from samsung that they cannot roll back the software, cannot give me replacement of mobile and I just have to wait for for the new binary updates. and they them self don't know when the update will come.
so I am stuck with this sick kitkat updated note 3 neo
I suggest you don't update your mobile to kitkat.