@Ukhellfire Hi, thanks for your hard work. About bluetooth in orange pi firmware repository they use ini files for bluetooth configuration. But in armbian firmware files I couldn't find that configuration files. Maybe problem it is.
Orange pi firmware: https://github.com/orangepi-xunlong/firmware bt_configure_pskey.ini, bt_configure_rf.ini.
Armbian firmware: https://github.com/armbian/firmware.
Also I know orange pi zero 2 using same wifi-bt chip and armbian support orange pi zero2.
But I don't know how to connect these dots because I don't fully understand the firmware logic. Maybe it helps.