DJI drones like the Phantom and Mavic use the metric system by default for telemetry. This article explains how to change the telemetry to the imperial system.
Did you make a long drive to a location to fly and realize that your SD card is full? With the directions in this article you can format the SD card from within the DJI drone.
On DJI drones like the Phantom series and Mavic series, the horizon in photos or videos can sometimes be tilted. This can be frustrating if you have devoted time to driving to a location to fly. This article explains how to avoid this issue with gimbal auto calibration.
This article explains what Beginner Mode is for DJI drones like the Phantom and Mavic and how to turn Beginner Mode off.