my s4 active screen turns white and gray
I need help figuring out what is going on with my phone. It turns blue and looks pixelated and then fades into a gray/white background with vertical lines. This happens every time I make or receive a phone call and now when I charge my phone it sometimes happens. I have not gotten my phone wet or banged it on anything. In fact, it started out of nowhere when my step daughter was on the phone and I know she didn't do anything to it because I was watching her. I love Samsung and galaxy phones, but this is the second problem I've had with these phones. I had to get my other phone replaced because the kit kat update ruined my touch screen when it came out.