The users who bought the Nexus 7 like to hack the UI navigation and other UI improvements in Nexux 7 here is the right place to see.Your the beginner for Android or older one for Android debug mode that doesn't matter at all.Those who need to fix the missed UI or enhanced UI they need factory image to solve this.The next step is after getting the factory image the user needs to know that how to use the factory image reset and use effectively.
Always nice to hear the friends suggestion to do before the factory image reset.Now first make the device its unbootable and Nexus 7 forum get the image for Nexus 7 bootable image.To do this get the forum Nexus 7 help becuase before starts the image its always good to do that.