I have a Galaxy A21s. The screen colours are all washed out and there is no way to change / adjust them in the settings. There are numerous threads on this already. I gave up and went to the King's Cross Samsung centre in London and was told that it was just a duff model with an LCD screen and there was nothing to be done. BUT on the way home I saw one in one of those used phone shops. I asked to see it switched and compared....MUCH better! I have seen on line that some people have two of these in the family. One is fine, the other rubbish. Seems like Samsung dropped the ball on this phone. Any other experience out there?