Voice Bonnet not working with Pi 4

[ArcadiaLabs]

Hi,
The Voice Bonnet V2 is not working with Pi4, using the last image.

i2cdetect -y 1 shows 1a device so I believe the bonnet is being detected.

cat /sys/firmware/devicetree/base/hat/product shows AIY VoiceBonnet

aplay -l returns aplay: device_list:272: no soundcards found...

I also tried to manually install everything on a fresh raspbian, with the same issue

Edit : I tried :
dpkg -l | grep aiy-voicebonnet-soundcard-dkms && sudo apt-get remove -y aiy-voicebonnet-soundcard-dkms
sudo reboot
sudo apt-get install -y dkms raspberrypi-kernel-headers
sudo apt-get install -y aiy-voicebonnet-soundcard-dkms

Then aplay -l shows the Voice Bonnet, but it won't work after a reboot.
When I do the above procedure again, it works again, until I reboot.

[ArcadiaLabs]

Solved : The Voice Bonnet is not detected after a reboot, but works fine after a complete shutdown.

I also forked the repo and updated HACKING.md with up to date install procedure and workarounds, for Pi4 under 32 and 64 bits Raspbian : https://github.com/ArcadiaLabs/aiyprojects-raspbian/blob/aiyprojects/HACKING.md

Closed.