sujithms189 , via OnePlus 7T , Jun 14, 2021 : Hello guys, I am trying to play HDR movies that I have downloaded to my OnePlus 7T mobile. But I am not sure the HDR effect is on when playing the files. I have tried MX player and vlc. Both with no success. I have tried to play a 4k HDR video on YouTube. As soon as the video starts to play, the brightness of the screen reduces. It changes back to normal when the video playback is stopped. Any ideas on this matter? How can I play downloaded hdr files with hdr effect? Please help. Thanks in advance!