A time may come when you receive an “Abnormal” status notification in your DJI Go 4 app. You click it and you receive another message saying “Recalibrate the Vision System. Use DJI Assistant on Mac or PC.“
It is really important that you don’t ignore this message. Even though you can fly your drone in this state, it is not safe to do so. You may hurt someone due to your drone misbehaving or you could just crash your drone, and all that because your drone is lacking of one of its main features, vision sensors.
So, in order to continue practicing safe flight, you must know how to recalibrate vision sensors on a DJI drone. In this article, I am going to show you a step by step guide on how to do this, along with a video preview, so you don’t make any mistakes.
1. Install DJI Assistant
First, go to the DJI Assistant download page and get one that suits your drone, but be careful not to get the wrong version.
2. Connect the drone to the PC
It’s a good idea to remove propellers from a drone. You will see me skipping that part in the video (I forgot), but you should do it just in case. The safer, the better!
Then make sure your drone battery is charged (it doesn’t need to be a full charge, 50% will be enough), and turn it on.
After turning on the drone and connect it to the PC via cable (in my case it was a USB-C cable that arrived with the Mavic Air). DJI Assistant interface will change and your drone icon will appear on the screen. Click it, and you will be taken to another window with options that are available for your drone.
On the left-hand side menu, choose “Calibration”. You will be greeted with few animations that will show you wrong and right techniques for calibrating the drone. Watch them carefully.
3. Calibrate your drone
After you “Next-ed” all of the animations, click “Calibrate Now.”
You will have to align the drone with the screen as I did in the video, and just like you saw in tutorial animations before the calibration, then follow the pattern.
You must do this for each set of sensors you have. Mavic Air has Front, Bottom and Back sensors, so I had to calibrate all of them.
4. Finishing the calibration process
If you completed each task you were asked to do, then you will see that window from the beginning, and it will say “Calculating…”. This means it collected all the necessary data and it’s now adjusting your sensors.
This step will last just a few seconds. After it’s done and you will get a “Calibration Success!” message and now you can exit the DJI Assistant and unplug and turn off your drone.
5. The Video Tutorial
6. The List of Steps
- Visit the DJI website and download and install the software.
- Run DJI Assistant.
- Make sure your drone battery is at least 50% charged.
- Remove the propellers from your drone.
- Turn on your drone.
- Connect the drone to the desktop/laptop via USB cable.
- DJI Assistant will automatically recognize that your drone is connected.
- Select the box with your drone on it.
- In the new window, on the left-hand side, click on “Calibration”.
- Carefully inspect DOs and DON’Ts that the Assistant will show you.
- After you “next-ed” all steps click on “Start Calibration”.
- Carefully place the drone in front of the screen at the right distance from the screen. Start with the drone almost touching the middle of your screen, and then move it away from the screen until the corners of the blue square become blue.
- Track the squares without moving your drone around. Keep it in place and just tilt rotate it.
- Next, you will need to take a step back and repeat the process.
- After you do both Close and Far calibration of one set of sensors, you will be asked to calibrate the next set (if you have it).
- When all vision sensors are calibrated,
DJIAssistant will then calculate the data it collected, and it will upload the new settings to your drone.
- After it’s done and you will get a “Calibration Success!” message and now you can exit the DJI Assistant and unplug and turn off your drone.
You have completed the calibration.
If you have any questions, post them in the comment section below.