He was changed ROM on his android phone.Thanks for the response, but the issue as the original post describes is that while using bluetooth for audio the bass is almost non existent. Turning up the bass on the EQ does nothing. MID and TREBLE work OK. The problem is that the audio stream doesn't contain any bass frequencies it seems. Sounded like maybe Chyeab0i changed something on the phone but was kind of vague. Maybe it's just the expected audio quality of the bluetooth module and there is nothing I can do.