Sorry Willo isnt that the way to do it....make a backup file onto a USB stick from the all set up box,then flash the new box and put the USB stick in with backup file on and go to image manager ?Confused here 🤔 You flashed the other box which went fine. Why are you plugging in a USB stick in with a backup on it then?
You should be just plugging in a storage drive which needs to be initialised and mounted as /media/hdd and formatted as ext4 R/W.
Sorry mate am i doing it wrong