DEVO 12s dsm2 dsmX Throttle

Im having the issue where I can bind my radio to the spektrum dsmx and dsm2 receiver. I have control of all of the control surfaces but I have no control of the throttle.
I am on Build 4.0.0
using Walkera Devo 12s

Try extending the end points on the throttle channel (ch1). Also it might need to be reversed.

Also calibrate ESC known end points, some ESCs refuse to arm uncalibrated.