Well I just tried clicking " Blue Light filter" on from main menu sliding down. Later disabled it. Now the screen is fine.Any suggestions ??? Is this normal or ???

Well I just tried clicking " Blue Light filter" on from main menu sliding down. Later disabled it. Now the screen is fine.Any suggestions ??? Is this normal or ???

hi there, I have same problem poped up. Suddenly a pink vertical line poped up on my RH side of the screen on S7Edge.Its new phone and under waranty from du. What is the cause, is it covered by vendor to fix it ??