Power on the remote controller. You will hear a short beep, and the controller's power LED will flash.
Never leave a charging battery unattended. If the battery appears swollen or punctured, stop use immediately and dispose of it at a battery recycling center. Remote Control Overview and Syncing ultra drone x14.0 assault manual
Perform a flat-surface gyro calibration. Clean out the motor spindles using tweezers. Battery degraded or not fully charged. Power on the remote controller
