How to build an image for S905Y2/Radxa Zero D1?

[ghost]

Good day everybody!
I try to build an image for S905Y2/Radxa Zero D1 but can't figure out how to adjust the configuration for this machine. I followed the README.
I tried the following:

export MACHINE="amlogic-s905d" # also tried "amlogic-s905"
export PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-meson64"
bitbake amlogic-image-headless-sd
# and also this image
bitbake core-image-base

The bitbake process can run without errors. I can flash the .wic images with belena etcher and dd.
When I insert the SD card into the device, it remains dead. No HDMI output and the device is not even getting warm. On the other hand, when flashing DietPi OS the device works.

What do am I missing? Is there a misconception about the models? I checked that the s905y2.inc is included in that model. I also can't wrap my head around amlogic-s905d (all S905D machines) : generic non-bootable .wic image to be customized. What does generic non-bootable .wic image to be customized mean?
The endgoal is to build a minimalistic distro for that device that can run a sever, bluetooth, wifi, docker and can execute .cpp or .c files.

Thanks in advance!