Received my T-EMBED today. Only the LED example worked from the factory loaded examples. Loaded the TEmbedGuages.ino example from VOLOS Projects YouTube page and all I get is a black screen and three LED lit along the bottom of the rotary switch. Any ideas on the problem or should I return for a refund?

Received my T-EMBED today. Only the LED example worked from the factory loaded examples. Loaded the TEmbedGuages.ino example from VOLOS Projects YouTube page and all I get is a black screen and three LED lit along the bottom of the rotary switch. Any ideas on the problem or should I return for a refund?