http://www.dji.com/download/phantom-downloads/ What’s new? Firmware Parameter configuration by NM Assistant is supported. (BTU module is required. Download the App software from iOS App store or scan the QR code to get the download link.) iOSD mini supported. S-busII receiver supported. Optimize the warmingup condition,to avoid a long waitperiod before aircraft can takeoff. Software Add tips for IMU Advanced calibration time out. Manual Add connection diagrams when used with other DJI products.