Default dtb for BPI M1+ and how to change it?

[sunzone]

·         Hello,

So I tried to figure out the original dtb file used but the system by default when I boot the image without any fine configuration. But I couldn't find any information about the default dtb. I checked at /boot/boot.cmd , but nothing is mentioned for "setenv fdtfile" which was available in the old kernel.

I figured out that I can add a suitable .dtb in the /boot/armbianEnv.txt in the following post.

https://forum.armbian.com/index.php?/topic/4817-banana-pi-m1-extra-configuration/

fdtfile=sun7i-a20-bananapi-m1-plus.dtb

 

But there is no way to know which .dtb file is used when this information is not set. Can somebody let me know how to figure out the currently used .dtb file in the system?

And to change the .dtb file, is adding it to the armbianEnv.txt as mentioned above right?