Hi. Last week a thin white horizontal line appeared on top of my Android smart phone. This thin white line doesn't disappear after factory restore. I remember the last thing I did with this android phone was to download an App called videoder which I got via Google search. Everything is running well in the phone but my consern is how to get rid of this thin white line. Kindly suggest what to do. I'm using android version 4.2.2 kitkat, which is rooted.