Lokesh koka , via OnePlus 5T , Sep 25, 2020 : I have a Philips HTS3510 home theater system. I tried to connect it to the OnePlus Y Seires TV using a 3 pin AV cable. But when I go to settings and switch from "Speakers" to "External Audio System".... The audio still comes from the tv speakers. Can anyone tell me why this ain't working?