Don't buy Samsung mobiles . In any Samsung mobile after 6 months some color patches came in display. Samsung not given warrenty on that problem. I have a galaxy F41 mobile . A color patch raised in expectedly. But Samsung simply says it was not covered under warranty. So don't buy Samsung mobiles.
Not only Samsung A series . This type of problem raised automatically in all Samsung galaxy mobiles. But Samsung not given warrenty. So please change display. That is the only solution. Don't contact Samsung customer care. Because it has no use.