Finally, You can update your Nexus device to latest Android N by downloading and installing it on your device.Not all Nexus device is getting this android N update, Only Following device are getting android N Update.There is No news about Android N update for Nexus 5 yet.And the work on Cm14 by cyanogenmod team is also going to start soon which will be based on latest android N.
1.Nexus 5X “bullhead”
7.Pixel C “ryu”
These are the official firmware on Android N provided by google.But it is still in the developer mode.Follow below steps on How to install android N on the nexus device.
#Download The firmware images from the link below!
1.Nexus 5X “bullhead”
7.Pixel C “ryu”
#How to install Android N Dev Preview
Download the appropriate firmware for your device.Then install it in your device by placing in your device internal memory and then navigate to Settings -> About -> Check System update.
You will get the notification of “A new System Update is available” Just tap on Install and wait for the process to complete.