I tried rooting my Nexus 9 and have ended up getting it into an endless loop of it trying to optimize apps.
I saw an answer on Nexus 9 stuck in endless reboot loop after trying to root it, but being new, what I don't understand is how do I get that file into the Nexus 9 if I can't get it to stop the boot cycle. I am pretty good at following directions if there is some step-by-step way to get out of this mess.