My UP875 keeps getting a No Disc error. It was barely used but it's out of warranty. I already opened it and cleaned the lens but nothing. As a last resort, I wanted to adjust the potentiometers like I saw for other players on youtube, but I couldn't find them on this model. Where are the potentionmeters?
The UP870 specs say it can play Dolby Atmos; however, I can't get it to output Dolby Atmos. I am playing the Spider Man far From Home 4K Blue Ray, which has Dolby Atmos. However, all the UP870 will output is DTS-HD 5.1.