Originally Posted by Sojodave

I got my bike back and the Di2 is working and $12 later it's as good as new....Are you ready for the answer to the problem? It was a loose wire in the handlebars that connects from the DI2 controller to the junction box. DOH!!!! I asked him how in the world would changing your chain make a wire come loose in the handlebars. He said he has heard of stranger things.