thanks,- my system
BIOS Version/Date:"Intel Corp. BNKBL357.86A.0076.2019.0219.1646 , 02/19/2019"
Bluetooth driver 22.214.171.124
windows 10 1809 17763.437
In properties it is impossible to select audio sink for them.
Tested them on an asus laptop with same windows 10 version, and they worked fine with the ac 9560 bluetooth and latest drivers, so it is not the windows versions fault.
yes, I installed them and no change. Also uninstalled and let windows install version 126.96.36.199 from 28.02.2019.
So either the qualcomm true wireless chips are incompatible with lower intel than ac9560 chip, or there is some software\driver issue.
The qualcomm chip first connect one earbud, then asks for connection for the other. Maybe its this? I have now tested it on laptops with intel cards like intel ac7260, same problem.