Any help would be appreciated. Esc just keeps beeping. Checked all connections numerous times and get servo responsefrom transmitter but no response on throttle. Also tried to update firmware via castle b-link. After several minutes, (20 at one point), no change in the progress. Bar on bottom keeps going like somethings happening but no change in the top bar indicating 1 of 3 packages. Tried calibration setup on spektrum and futaba motors.