Answer to: Does this mean its a dead batteryNo. It means plug in your phone and charge it. If it persists, clean the dock port and the connector you use to charge your phone. If this does not help, leave a comment.
Answer to: How to remove small scratches on the retina display?Car resin is made for car glass. You don't scoop ice cream with a shovel just because it works as a scoop. Therefore, unless it is explicitly stated that the resin is safe to use with computer glass, don't use it. I found this for you: http://www.877geeksonsite.com/computer-repair-blog/laptop-repair/mind-the-gap-how-to-fill-scratches-in-computer-screens/ Try using the methods the site suggests. Good luck! Note: If this answer helped you, please mark it as a solution! Thanks.