Hi
Just upgraded a Emax Nighthawk with cc3d atom, Simon 12a esc's from release 15.... to RC2 and I experienced trouble with the ESC calibration.
The Calibration wizard would not fire the motors up no matter which ESC mode I selected. While I got the normal ESC beeps when connecting the battery I never got beeps when in the second phase once stop was pressed. I got a low value of around 900.
Eventually played in the Configuration Output tab. By linking all motors, selecting PWM 50, SAVING and then powering on I got the motors to run.
Previously I was able to select pwmsync or oneshot and be able to calibrate motors without problem.
Gary