Installing Manjaro Arm on X96 Air P3 TV Box

Dear all, I use Manjaro-ARM-xfce-vim3-21.04.img on my X96AIR P3 4/64GB and the meson-sm1-x96-max-plus-100-vim2.dtb together with extlinux.conf and u-boot.ext are the one and only files which work (s. link above)
@thanks @dante6913

My box runs stable with 2100MHz, but
Wireless, Bluetooth and HDMI Sound connection are not working
without Wifi and BT I can live, but no HDMI-sound is not acceptable.

INXI -Fa shows that there is no driver for the AXG-soundcard, in Android the card is detected as AUGESOUND.

Do anybody have a tip how to activate the sound over HDMI? Will there a patch in the next kernel-update to 5.12 or can I install a driver for the soundcard?

Best regards