I have the exact same problem!! My wife?s brand new RR6+ bike works, aside from having to totally readjust the derailer. 

My brand new out of the box RR6+ bike won?t work.  Showing the zeros and the 8, lights work motor works but nothing else. At least my derailer was setup properly! Lol

Hoping to hear about a fix tomorrow after the holiday!

Is the only repair a replacement of parts?