Android 5.0.2 OTA update build LRX22G rolled out for Nexus 7 WIFI topic

Google has rolled out Android 5.0.2 OTA update build LRX22G rolled out for Nexus 7 WIFI. I have updated using the following guide. it might help others as well. you can also try to update over the OTA as one of my friend did. He got OTA early but i had to do it manually.
Source: http://dnd.com.pk/85145