Good morning...at least here in Africa (Tanzania).
I have followed your directions perfectly and it worked as it booted up. note: my device has a green main board and not a blue one as it seems to have different characteristics. My problem is that I dont seem to be able to install/activate a GIU. I am a total idiot and new to ARMBIAN and LINUX in general. Honestly, I don't even know how to find a file on a USB drive.
Please help with subsequent steps to install this as I would really like to use this device as a NAS as I have seen that there is software available for ARMBIAN to do this.
....AND most importantly.....THANK YOU for the help and guidelines.