Introduction
This manual provides essential instructions for the safe and effective use of your FIMI 4G Cellular Video Transmission Module. This module is designed to enhance the video transmission capabilities of your FIMI MINI 3 and FIMI MINI 3 SE drones by utilizing 4G cellular networks.
Disclaimer: All products are intended for recreational use only and are not for any military or war purposes. Please adhere to local laws and regulations regarding drone operation and cellular data transmission.

Figure 1: FIMI MINI 3/SE 4G Module, showing the module with its USB-C connector and two antennas.
Compatibility
The FIMI 4G Cellular Video Transmission Module is compatible with the following drone models:
- FIMI MINI 3
- FIMI MINI 3 SE
Setup Instructions
- Prepare the Module: Unpack the 4G cellular video transmission module.
- Locate Drone Port: Identify the designated expansion port on your FIMI MINI 3 or MINI 3 SE drone. This is typically a USB-C port.
- Connect the Module: Carefully insert the module's connector into the drone's port. Ensure a firm and secure connection.
- Position Antennas: Adjust the two antennas on the module for optimal signal reception. For best results, ensure they are not obstructed.
- Power On Drone: Power on your FIMI drone as per its instruction manual. The drone should automatically detect the connected 4G module.
- App Configuration: Open the FIMI drone control application on your mobile device. Navigate to the settings or transmission section to verify the 4G module's status and configure any necessary network settings. You may need to insert a compatible 4G SIM card into the module (if applicable and not pre-installed) for cellular connectivity.

Figure 2: Close-up view of the FIMI 4G cellular video transmission module, highlighting its compact design and connection port.
Operating Instructions
Once the 4G module is successfully connected and recognized by your drone, it will enable video transmission over a 4G cellular network. This allows for extended range and improved signal stability in areas with good cellular coverage.
- Ensure 4G Coverage: Before flight, ensure you are in an area with strong 4G cellular network coverage for reliable video transmission.
- Launch Drone App: Start the FIMI drone control application on your mobile device.
- Monitor Connection: Check the app for indicators confirming the 4G module is active and connected to the cellular network.
- Begin Flight: Operate your drone as usual. The video feed will now be transmitted via the 4G network, potentially offering a more stable and longer-range connection compared to standard Wi-Fi or OcuSync.
- Video Recording/Streaming: Use the drone app's features to record video or stream live footage, leveraging the 4G connection.
Note: Performance may vary based on cellular network strength, data plan, and environmental factors. Always prioritize visual line of sight and local regulations.
Maintenance
- Cleaning: Gently wipe the module with a soft, dry cloth to remove dust or debris. Do not use liquid cleaners or solvents.
- Storage: Store the module in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Connection Integrity: Periodically inspect the connector and antennas for any signs of wear or damage.
- Software Updates: Keep your drone's firmware and the FIMI control app updated to ensure optimal compatibility and performance with the 4G module.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No 4G signal / Poor video quality | Weak cellular network coverage; Incorrect antenna positioning; SIM card issue. |
|
| Module not recognized by drone | Loose connection; Drone firmware outdated; Module malfunction. |
|
| Intermittent connection | Environmental interference; Fluctuating 4G signal; Overheating. |
|
Specifications
| Feature | Detail |
|---|---|
| Brand Name | FIMI |
| Drones Accessories Type | Data Transmission System |
| Compatibility | FIMI MINI 3, FIMI MINI 3 SE |
| Origin | Mainland China |
| Certification | CE |
| Hign-concerned Chemical | None |
| Product Dimensions | Not specified (Package: 10cm x 10cm x 5cm) |
| Max. Transmission Distance | Not specified |
| Transmitter Power (EIRP) | Not specified |
| Fps | Not specified |
| Resolution | Not specified |
| Package Weight | 0.1 kg |
User Tips
- Signal Strength: For optimal video transmission, always operate your drone in areas with strong and stable 4G cellular network coverage. Weak signals can lead to poor video quality or disconnections.
- Compatibility Check: This module is specifically designed for FIMI MINI 3 and FIMI MINI 3 SE drones. Ensure your drone model is compatible before attempting to connect.
- Firmware Updates: Regularly check for and install the latest firmware updates for your FIMI drone and the associated control application. Updates often include performance improvements and bug fixes that can enhance the module's functionality.
Warranty and Support
This product is CE certified, indicating compliance with European safety, health, and environmental protection requirements.
For warranty information, technical support, or service inquiries, please refer to the official FIMI website or contact their authorized customer service channels. Keep your proof of purchase for warranty claims.