I´ve just the same problem with my A8+ when its OS was updated to Android 9. The wolume of my bluetooh earbuds cannot be manage from the phone anymore, and it gets fixed on the upper level. Before the phone was updated, everything was going OK. I tried to change the advanced buttom of the Bluetooh menu, but its appeared unavailabled with a remark saying that the device is not compatibled. I restarted the phone by the problem remainded. What can I do to solve the problem?
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