CHROME OS RECOVERY

    Chrome OS is missing or damaged
    remove all connected devices and start recovery

    http://google.com/chromeos/recovery

        A. https://www.youtube.com/watch?v=gK7xcK8qV0I
                First try:
                    When message:  "missing or damaged"
                        Crtl + D

        B. https://www.youtube.com/watch?v=Dd8eddTwTIQ
                How To Recover Chrome OS is missing or damaged

        C. https://support.google.com/chromebook/answer/1080595
                Recover your Chromebook

                Get:
                    1. USB flash drive that can hold at least 8 GB

                On Mac:                    
                    2. Go to Step 2: Download a new copy of the OS
                        Must have chrome browser installed on this computer

                    3. https://www.youtube.com/watch?v=HGNFoug22M0
                        Follow instructions how to run the Recovery App
                        Make a recovery USB

                On Chromebook:
                    4. plug into USB port and press "ESC + Refresh + Power" buttons