Hi there, had the same issue, but I only saw 2 LEDs light up red, and that was it. Also I can’t see the leds on the CubePanel board itself not light up, is this needed? If I look at some movies on YT, I can see them light up too.
Taking through the software does seem to work, since it has no problems uploading the demo’s to the Rainbowduino, but hta’s about it. Manual states the pads should be soldered, but I can’t get them to bridge either. Almost melted my connection-rods…
At this moment nothing at all, total darkness (apart from the SMD-LED on the Rainbowduino).