While testing a device tree overlay to enable the micro-USB port on an NanoPi Neo as USB host,
I found a small issue with armbian-config:

If have 2 .dtb files on my system which contain my board name nanopi-neo in the filename:

Nano$ ls -1 /boot/dtb/*nanopi-neo*
/boot/dtb/sun8i-h3-nanopi-neo-air.dtb
/boot/dtb/sun8i-h3-nanopi-neo.dtb

The code in /usr/lib/armbian-config/jobs.sh, which searches for the proper .dtb file, finds the wrong - first - file.
Which is sun8i-h3-nanopi-neo-air.dtb in my case.

        for dtb in ${dtb_path}/*.dtb
        do
            if [[ $dtb == *"${board_name}"* ]]; then
                used_dtb=$dtb
                break
            fi
        done

I modified the if [[ ]]; then line to find the correct file:

        for dtb in ${dtb_path}/*.dtb
        do
            if [[ $dtb == *"${board_name}.dtb" ]]; then
                used_dtb=$dtb
                break
            fi
        done

I'm not sure if the mask *<board name>.dtb can be applied generally, but it fixes the error and works in my case.