vendor/mediatek/proprietary/hardware/audio/mt8127/aud_drv/
line:1418
SetLinoutLGain(LINE_OUT_BUFFER_ODB_INDEX);
SetLinoutRGain(LINE_OUT_BUFFER_ODB_INDEX);
+ if( device == 15 ){
+ DegradedBGain = 4;
+ }
SetSpeakerGain(DegradedBGain);