1. LG V20
2. Stock Korean-KT Nougat(7.0, 10y)
3 ESS ES9218 DAC, Snapdragon 820
in version 704 the hi-res menu is shown, but when turning on hi-res option for wired output it says it failed to use hires output(whenever system hi-res is on or off). couldn't check usb-dac since i dont have any of it
audio_policy.conf