Compass Calibration:

1. Choose an open area to conduct the compass calibration.
2. Tap the Aircraft Status bar in the app and select "Calibrate", then follow the on-screen instructions.
3. Hold the aircraft horizontally and rotate 360 degrees. The aircraft status indicators will go solid green.
4. Hold the aircraft vertically with the nose pointing downward, and rotate it 360 degrees around the center axis.
5. Recalibrate the aircraft if the status indicators blink red.
   If the status indicators blink red and yellow after the calibration procedure, move your aircraft to a different location and try again.

IMU Calibration:

1. Make sure that the Aircraft and Remote Controller battery is more than 50%.
2. Turn on Remote Controller and connect to the Mobile Device.
3. Place the Aircraft on a level surface.
4. Turn on the Aircraft.
5. Launch DJI Go app and go to Main Controller settings > Advanced Settings> Sensors> IMU Calibration> Start Calibration.
6. The calibration process will take about 5 minutes. Please wait for the confirmation on DJI Go app.
7. IMU Calibration will fail if the aircraft is not positioned according to the instruction on DJI GO app.
8. If calibration fails, restart the aircraft and calibrate the IMU again.

Also, please do try to re-link your remote controller and your aircraft to make sure that they both have a fresh connection again. Please do follow the guide below.

Linking the Remote Controller:

1. Power on the aircraft and the remote controller. Wait until the aircraft status indicators blink yellow. Ensure that the remote controller is within 20 cm of the aircraft during linking.
2. Press and hold the power button of the Intelligent Flight Battery for three seconds. Release the button after hearing a single beep. The Front LEDs will blink red.
3. Press and hold the Flight Pause button, the Function button, and the Customizable button simultaneously.
   Linking begins when the alarm becomes a quick single beep after an alternating single/double beep.
4. Then the front LEDs turn solid red after blinking green. When the status LED on the remote controller turns solid green, linking is complete.