I am having the same issue. I downloaded BalenaEtcher and did not extract the zip. It was flashed on the 8GB micro SD. When I plug it into the printer, the blue screen shows then no images flash on the screen.
I have tried with both mains power and USB (for some reason this is hit and miss). After i remove the SD card the screen goes back to the default screen.
I am using the ALDI Cocoon Create (AUS) version.
The micro SD is a class 4 8GB (only one I could get my hands on)
After hunting around the house I could not find a Micro SD card lower than 16GB
I bit the bullet and rolled the dice with a new 16GB I purchased the other day…
It updated the firmware. My 8GB must be too slow for mine or a different rev. Nov 2016 according to the console output