I have a S6 Edge Plus and there is a squiggly centimeter long scratch near the top lefthand corner. I have tried toothpaste, an pencil eraser, baby powder, corn starch, and glue. What do you guys recommend to make it less visible to the naked eye. I contacted a near by repair shop and they said that they would have to change the whole lcd screen for $250, which is definitely not worth it because it is really just comestic damage.