Originally Posted by scutchin

Both shifters on my Di2 just stopped working tonight. Neither shifts, the top buttons don't change my Garmin screens like they used to, and neither E-tube mobile app or the Windows based E-tube recognize the shifters.

I have it on my trainer and have been loosening the shifters to align them a little since the left one was a little lower, but only moved it up a few mm.

On the inside of each shifter under the really hard to pull up rubber boots there are 2 wires on the right shifter and one on the left, plus a dummy plug on the left. I made sure those were all the way in with the little tool Shimano includes.

Are there maybe other wires I'm not aware of? Do I need to take the shifters completely off, if so how I do that (unwrap handlebar tape?!)

Please help, I'm lost!!


The only 2 wires I see (right shifter)

E-tube doesn't recognize either shifter.