Originally Posted by
Jack Tone
I missed whether you've tried putting the old battery back in to test it. I know the bluetooth module doesn't work with that one, so remove that, too.
I believe I
did try restoring the original parts, but just in case I didn't, I just did it again. The result is the same. The front derailleur works, but the rear derailleur does not. And Junction A does not respond when its button is pressed.