Manually updating your Nexus 7 (wifi only) to Android 4.2.2

I've also manually updated a Nexus 7 (wifi only) using the same method as I used on my Nexus 10.

This is totally done at your own risk but it worked fine for me.

Since this is an update that patches the already installed system I strongly advice against trying this on anything but an non-rooted JOD40D device. 

Just follow the same steps as in the Nexus 10 guide but use this OTA file instead.