It will unlock/arm but will not power up,,it just shuts down when I move the throttle stick up, I see no error messages on controller or app
Calibrates with no problems and sees 12 satellites
If you only use the app on your phone to fly it, does it work then? If so could be an issue within the controller. You can check the antenna internally to see if it has been rubbed and damaged by the phone holder swinging out.