Unsync bluetooth audio volume control After Android 6.0.1 update controlling the volume on my phone which is connected to a bluetooth device controls the volume on the bluetooth device. Before, when I changed the volume on my phone, the volume on the device still had his own volume control.

I understand, that for ease of use the merging happened - probably people disliked that they had to control two devices instead of one.

However, this means I lost a LOT of control over the fine tuning of the volume. This is a disadvantage for cases when you want to play through a bluetooth speaker a soft ambient in a low volume to fall asleep to. Now the lowest point of volume is high. Even though you can move the volume around in a non-discrete manner, you can hear, that only around 10-15 discrete volume values are used.

Is there no workaround, app, custom root modification or something I could do to switch back to two volumes instead of one?
Goto Developer Options, activate the "Disable Absolute Volume" toggle (see screenshot). Disconnect and reconnect your Bluetooth connection. Problem solved.

NOTE: This was done on Android 7.0. You can try on your own OS version.