DTB on Mecool KM9 Pro 2G/16G

I can, for some reason, not figure out to get Coreelec to run properly on the Mecool KM9 Pro, 2G RAM/16G ROM.

I’ve used the following DTB’s:

After every new installation with different dtb’s I get the following error:
CoreELEC:~ # cat /proc/device-tree/le-dt-id
cat: can’t open ‘/proc/device-tree/le-dt-id’: No such file or directory

Can anyone help me out? Remote and bluetooth don’t work, WiFi does.

dtname returns:
amlogic, g12a

I even tried this:

mount -o remount,rw /flash
cp /usr/share/bootloader/device_trees/g12a_s905x2_2g.dtb /flash/dtb.img

Happens on 9.2.1 and 9.2.0.

It’s cat /proc/device-tree/coreelec-dt-id

What are you trying to do?