Guys; you seem pretty knowledge on the subject. I have a FiiO Q1 connected to my S6 running Android 6.0.1. Alpha 703 (installed quietly overnight) detects the DAC but no sound is heard on headphones. Everything works well on Neutron and USB Audio Pro. Now, for me as well, when the DAC is powered, Neutron is launched and starts playing (I cannot remember how to disable this feature...) Any ideas...??? Thanks in advance.