If it is not in the book I would call e-flight and ask what the dip switch settings are. Had the same type problem with the same radio when I went from my CX2 to mCX. Good luck, it's a fun little bird. Make sure you check the linkages after every strike or hard set down. They tend to pop off a lot but are a 1 second fix, since they don't usually fly off, just hang from 1 ball link....