
LG 55NANO869PA
55", Nano-Cell, 4K, 2021

LG 55NANO869PA
55", Nano-Cell, 4K, 2021
Hello, When I plug in (wired) headphones and set the sound to headphones, it works but I cannot change the volume. When I try to change the sound, the mute/silenced sign appears on the screen. Does anyone know why? Merci for your help.