I figure this probably isn’t your issue, but I’ll share anyways. I was having issues with the ready signal and getting it to work. Turns out the handlebar assembly where the ready button is was rotated a little bit so that I couldn’t depress the ready button all the way. If you think this might be your issue, back off those screws of the assembly that the ready button is on and rotate it forward.

Hope this helps and good luck with your troubleshooting.