The green button turns the Loki on and off manually. After Loki is securely installed and you are prepared for flight, power on Loki manually by pressing and holding the green On/Off button until Loki powers on. The aircraft should be powered on only after Loki is powered on. A new SBF file is created each time Loki is powered on, and ends when Loki is powered off by holding the button down until the status LED’s turn off. So, for each flight, Loki should be powered on manually before the aircraft, and powered off manually upon landing. Loki will not power off automatically when powered on manually. Periodically, check to make sure that the Loki internal storage is not full. Please view the Loki User Guide for additional operational info. For additional assistance, please refer to our Loki FAQ.