Downgrade Nexus 9 running lollipop to KitKat I'd like to downgrade my Nexus 9 to android 4.X (KitKat). Is this possible?
I'm not the pro doing something like that and I could not find something with google.

Can you help me please?
Thank you
It is unlikely, since the Nexus 9 was a Android 5.0 Lollipop launch device. There are no official (Google developed &amp; distributed) versions of Android 4.4 KitKat for the Nexus 9.

Third party roms would be the way to go - but I have found no KitKat roms for the Nexus 9, and I personally doubt one would be developed unless there was a massive interest in it.