DJI O3 Air Unit – Beginner's Guide

20/11/2023 15/10/2025

Are you wondering how to properly install, activate, and adjust parameters with the DJI O3 Air Unit? Do you want to gain more skills in installing and using the product? Read the article to quickly complete the pre-flight preparation - from unpacking to parameter settings.

Contents

· About DJI O3 Air Unit

- Lessons

– User manual

· Unpacking and first steps

– Unpacking

– Activation

– Configuring the controller parameters

· First time use

– Firmware update

– Export files

– Audience mode

– Accessory replacement

About DJI O3 Air Unit

The DJI O3 Air Unit is an advanced video transmission device featuring O3+ technology for long-distance, low-latency HD transmission. It can be mounted on a racing drone and used with DJI Goggles and a remote controller to wirelessly transmit video, control signals from the remote controller, providing you with a video transmission and control solution. Click here to check the technical specifications of DJI O3 Air Unit Technical Specifications.

DJI O3 Air Unit – Beginner's Guide - Drones.bg Shop for drones, action cameras, stabilizers, drone service

The DJI O3 Air Unit camera features 155° ultra-wide-angle lens, which provides you with a wide field of view (FOV) to meet your visual needs when performing various flight actions.
The device consists of a connection status indicator and a connection button, and is designed with some ports, including a microSD card slot, a USB-C port, a dual-band dual-polarization antenna (IPEX1 connector), and a 3-in-1 port, making it easy to install.

Lessons

For a step-by-step guide to using the DJI O3 Air Unit, click here, to watch the lessons.

User manual

For more information about the product, please see the user manual: DJI O3 Air Unit User Manual.

Unpacking and first steps

The device must be activated before use. Download DJI Assistant 2 (Consumer Drone Series), connect your device to a computer, and activate it by following the instructions.

Unpacking

DJI O3 Air Unit

Installation Guide

The DJI O3 Air Unit must be connected to a drone to use its full functionality. See the steps below.

1. Insert or solder the 3-in-1 cable into the socket or solders on the drone's Flight Controller board.
* The wiring sequence of different flight controllers may be different. It is recommended to check whether the wiring sequence is correct before applying power.
2. Mount the air module on the drone and check if it is installed securely.
3. Arrange the camera coaxial cable to avoid tangling with other cables.
4. Install four screws on each side of the camera module. (Note that the depth of the screw hole is 2 mm. Make sure not to overtighten the screw. Applying too much pressure will break the screw. .
5. Mount the antenna module on the drone and check that it is securely attached.
6. Arrange the cables. .

Watch this video to install the device:

In case of any malfunction during use, including but not limited to screen flickering, video ripple effects, jelly effects, or poor heat dissipation, please refer to The DJI O3 Air Unit installation guide.

Activation

1. Visit DJI official website, enter the DJI O3 Air Unit page, find "Download" in the upper right corner of the menu and click to enter the download page.
2. Download DJI Assistant 2 (Consumer Drones Series) to your computer.
3. Connect the DJI O3 Air Unit to your computer using a USB-C cable.
4. Launch DJI Assistant 2 and enter your DJI account and password to log in.
5. After the device is successfully connected to the computer, click the DJI O3 Air Unit icon and you will be prompted to activate the device. Click „Start Activation“.
6. Click "Next" to complete the activation process.

Watch the video for step-by-step instructions on activating your device:

Connect

Before using the DJI O3 Air Unit for the first time, connect the drone, remote controller, and goggles for a full FPV flight experience.
Take DJI Goggles 2 as an example:

Step 1: Connect the air module to the glasses

1. Turn on the glasses and air module and press the glasses connection button. The glasses will start to emit a continuous beep, indicating that they have entered the connection state.

2. Press the connect button on the air device and the live view will appear in the glasses after the connection is successful.

* When the connection status indicator on the air module changes from green to red, it indicates that it is in connection mode. The status indicator will be solid green after the connection is successful.

Step 2: Connect the air device to the remote control

1. Turn on the remote control, press and hold the power button again until the remote control beeps and the status indicator flashes quickly. In this case, the remote control is in pairing mode.

2. *Press the connection button on the air module and the status indicator will stop flashing and turn solid green once the connection is successful.

Watch this video for detailed connection steps:

Configuring flight controller parameters

After completing the above operations, use Betaflight to set the flight controller parameters.

Watch this video about parameter settings:

First time use

Firmware update

The DJI O3 Air Uint firmware can be updated without turning on the device. Please go through the steps below to update the firmware.
1. Connect the Air device to your computer using a USB-C cable.
2. Launch DJI Assistant 2 (Consumer Drone Series).
3. Click "Firmware Update", select the latest firmware version, click "Update" and wait until the update is complete.
4. Restart the device after the update is complete.

Watch this video for firmware update:

Export files

The internal storage of the DJI O3 Air Unit is about 20GB, which can meet the daily shooting needs of most users. You have the option to expand the internal storage by installing a microSD card on the side of the image transmission unit. It is recommended to use the following microSD cards:

SanDisk Extreme U3 V30 A1 32GB microSDXC
SanDisk Extreme Pro U3 V30 A1 32GB microSDXC
Kingston Canvas Go!Plus U3 V30 A2 64GB microSDXC
Kingston Canvas React Plus U3 V90 A1 64GB microSDXC
Kingston Canvas React Plus U3 V90 A1 128GB microSDXC
Kingston Canvas React Plus U3 V90 A1 256GB microSDXC
Samsung PRO Plus U3 V30 A2 256GB microSDXC

In case you need to export files, connect the Air device to a computer using a USB-C cable.

Watch this video for the steps to export a file:

Audience mode

The DJI O3 Air Unit supports Audience Mode when used with DJI Goggles 2, allowing the live view to be displayed on multiple goggles at the same time. Follow the steps below to pair the Air Unit with the goggles.
1. Connect the drone to the (main) pilot goggles.
2. Select "Settings" on the aviator goggles.
3. Tap „Broadcast,“ select „Pilot,“ and enable „Broadcast.“.
4. The device number, for example 312E, appears, which can be found on the audience glasses. After selecting the device number in the audience glasses, the live view will be synchronized and displayed on the audience glasses.
5. Turn on the audience glasses, go to „Settings“ > „Broadcast“ > „Audience“, select „312E“ (as shown in the picture), and the live view of the pilot glasses will be displayed on the audience glasses.

Changing an accessory

· Camera replacement

1. Unscrew the two screws securing the protective cover of the camera's coaxial cable port, and then remove the protective cover.

2. Remove the coaxial cable connector with tweezers and remove the coaxial cable and camera.

*When removing the coaxial cable plug, please be careful not to do not cause irreversible damage to the coaxial cable connector.

3. Prepare a new camera module, align the coaxial cable socket to the air module and press it down. Make sure the camera module is firmly installed.

4. Close the protective cover and tighten the two Philips screws.

· Changing the antennas

1. Unscrew the two screws securing the antenna port protective cover, and then remove the protective cover.

2. Grasp the antenna connector with tweezers and remove the antenna.

3. Prepare a new antenna module, align the antenna socket to the aerial module and press it down. Make sure the camera module is firmly installed.

*When installing the antennas, please be careful not to cause irreversible damage to the antenna connectors and feeders.

4. Close the protective cover and tighten the two Philips screws.

Watch this video for a guide to replacing the camera and antennas:

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Dimiter Radev

Поръчката пристигна бързо, а DJI Care абонаментът, който поръчах беше вече асоцииран към дрона.

Adrian Popov

Plamen Petkov

Mrtn

Много доволен! Подариха ми страп за джойстик момчетата, понеже бяха объркали поръчката ми. Нямаше нужда, но благодаря :) Страпа вече влезе в употреба.

Tsvetan Tsvetkov

H Hristov

Kostadin Kyorgogov

Georgia Sula

Boris Kolev

Много любезен персонал и разбират от работата си!

Vasil Krastev

Много съм доволен от обслужването. Само две поръчки съм правил, но всичко беше безупречно. Момчетата са много точни и отзивчиви в магазина. Винаги ще помогнат, с каквото могат. Нямам никакви оплаквания и ги препоръчвам! :-)