Thought I'd share my experience - like others, I had multiple disconnects from BT on android 9.
Was able to fix BT drops/disconnects by adjusting my phone system's BT settings:
Goto: settings -> system -> advanced -> developer options (requires unlock) -> scroll down to BT settings and choose AVRCP 1.6, LDAC codec set to adaptive bit rate, all other BT settings default.
I leave phone unpaired, music paired. Hope this helps.
Last edited by dbldangertilt; 08-15-2019 at 04:11 PM.