1. Introducció
This manual provides essential instructions for the safe and effective use of your GEPRC Vapor-D6 O4 Pro FPV Drone. Please read this manual thoroughly before operating the drone to ensure proper setup, flight, and maintenance. The Vapor-D6 O4 Pro is a high-performance FPV racing quadcopter designed for cinematic HD footage and dynamic flight experiences, featuring seamless integration with the O4 Air Unit Pro VTX.

Imatge 1.1: De dalt a baix view of the GEPRC Vapor-D6 O4 Pro FPV Drone, showcasing its carbon fiber frame and propeller layout.
2. Precaucions de seguretat
Operating an FPV drone requires adherence to strict safety guidelines to prevent injury or damage. Always prioritize safety.
- Normativa local: Always comply with local aviation laws and regulations. Obtain necessary permits or licenses if required.
- Comprovació prèvia al vol: Before each flight, inspect the drone for any damage, loose components, or obstructions. Ensure propellers are securely attached and undamaged.
- Seguretat de la bateria: Use only recommended batteries (6S LiPo 1500mAh – 2000mAh). Handle LiPo batteries with care, avoiding punctures or overcharging. Store them in a fireproof bag.
- Perill de l'hèlix: Keep hands, face, and loose clothing away from rotating propellers. Propellers can cause severe injury.
- Medi ambient: Fly in open areas, away from people, animals, buildings, and power lines. Avoid flying in strong winds, rain, or other adverse weather conditions.
- Línia de visió: Maintain visual line of sight with the drone at all times, even when using FPV goggles.
- Interferència: Be aware of potential radio interference sources that could affect control.
- Procediments d'emergència: Familiarize yourself with emergency disarming procedures for your flight controller and radio transmitter.
3. Contingut del paquet
Verify that all items listed below are included in your package. If any items are missing or damaged, contact your retailer or GEPRC support.
- 1 x Vapor-D6 O4 Pro FPV Drone
- 2 x HQprop 6X3.5X3 Propellers (sets)
- 2 x Battery anti-slip pads
- 1 x Spare screw pack (includes M3*10mm, M3*8mm, M3*6mm, M5*28mm screws, M5 flange nut, M3 rivet nuts)
- 1 x Vapor side panel
- 2 x M20*250mm battery straps
- 1 x tornavís en forma de L 1.5 mm
- 1 x tornavís en forma de L 2.0 mm
- 1 x GoPro mount
- Optional: GEP-M10 GPS module (if purchased with GPS option)

Imatge 3.1: Anglesa view of the GEPRC Vapor-D6 O4 Pro FPV Drone, showing the integrated O4 Air Unit Pro and antenna.
4. Configuració
4.1 Instal·lació de l'hèlix
- Identify the correct rotation direction for each propeller (CW and CCW).
- Align the propeller with the motor shaft and secure it using the provided nuts. Ensure they are tightened sufficiently but do not overtighten.
- Double-check that all propellers are firmly attached and spin freely without obstruction.
4.2 Connexió de la bateria
The Vapor-D6 O4 Pro uses an XT60 connector for battery input. Ensure your battery is fully charged before connecting.
- Connect a fully charged 6S LiPo battery (1500mAh – 2000mAh recommended) to the XT60 connector on the drone.
- Secure the battery to the top plate using the provided battery straps and anti-slip pads to prevent movement during flight.
4.3 O4 Air Unit Pro Integration
The drone is designed for seamless integration with the O4 Air Unit Pro Transmission Module and Camera, which provides enhanced image clarity and light sensitivity for FPV and recording.
- Ensure the O4 Air Unit Pro is correctly seated and connected according to the manufacturer's instructions for the air unit.
- Verify the O4 Air Unit Pro Antenna is securely attached and positioned for optimal signal transmission.
4.4 Optional GPS Module Installation (GEP-M10 GPS)
If you have the optional GEP-M10 GPS module, follow these steps for installation:
- Mount the GPS module in the designated location on the drone frame, typically away from other electronics to minimize interference.
- Connect the GPS module to the flight controller (GEP-F722-HD v2) using the appropriate port (UART). Refer to the flight controller diagram for specific pinouts.
- Configure the GPS settings within the Betaflight configurator (see section 4.6).
4.5 Vinculació del receptor
The drone supports PNP (Plug-N-Play), GEPRC ELRS24, or TBS Nano RX receivers. Refer to your specific receiver's manual for binding procedures with your radio transmitter.
- Ensure your receiver is correctly wired to the flight controller.
- Follow the binding instructions for your chosen receiver and radio transmitter.
- Verify successful binding through the Betaflight configurator (Receiver tab).
4.6 Configuració de Betaflight
The drone comes with a GEP-F722-HD v2 flight controller. Basic configuration is typically pre-tuned, but adjustments may be necessary.
- Download and install the latest Betaflight Configurator software on your computer.
- Connect the drone to your computer via a USB cable.
- In Betaflight, verify sensor calibration (Gyro: ICM42688-P, Barometer).
- Check motor direction and ESC settings (TAKER H60_BLS 60A 4IN1 ESC).
- Configure OSD (On-Screen Display) elements as desired.
- If using GPS, enable and configure the GPS module in the Ports and Configuration tabs.

Imatge 4.1: Part superior view of the GEPRC Vapor-D6 O4 Pro FPV Drone, highlighting the central electronics stack and battery mounting area.
5. Instruccions de funcionament
5.1 Comprovacions prèvies al vol
- Ensure battery is fully charged and securely mounted.
- Verify propellers are undamaged and correctly installed.
- Check for any loose wires or components.
- Power on your radio transmitter and FPV goggles.
- Confirm clear FPV video feed and strong radio signal.
- Check for GPS lock if the module is installed and enabled.
5.2 Armament i desarmament
The drone must be armed before motors will spin. The default arming procedure is typically a stick command (e.g., throttle down and yaw right). Refer to your Betaflight configuration for specific arming switches or stick commands.
- Armat: Perform the configured arming command. The motors will typically spin slowly, indicating the drone is armed.
- Desarmament: Perform the configured disarming command (usually throttle down and yaw left, or a dedicated switch). Motors will stop. Always disarm immediately after landing or in an emergency.
5.3 Vol
The Vapor-D6 O4 Pro is equipped with high-performance SPEEDX2 2407E 1750KV motors and factory-tuned PID controls for stable flight.
- Enlairament: Gently increase throttle after arming. The drone should lift off smoothly.
- Control: Use the left stick for throttle and yaw, and the right stick for pitch and roll (Mode 2). Practice gentle movements initially.
- Temps de vol: Expect approximately 14-19 minutes of flight time with a recommended 6S LiPo 1500mAh – 2000mAh battery, depending on flight style and conditions.
- Aterratge: Reduce throttle slowly to descend. Disarm the drone immediately upon landing.
5.4 Cinematic HD Footage
The integrated O4 Air Unit Pro provides high-quality video for both FPV and recording. Ensure your O4 Air Unit Pro is configured for recording before flight if you intend to capture cinematic footage.

Imatge 5.1: Lateral view of the GEPRC Vapor-D6 O4 Pro FPV Drone, showing the robust carbon fiber arms and motor mounts.
6. Manteniment
Regular maintenance ensures the longevity and performance of your drone.
- Neteja: After each flight, clean the drone to remove dirt, dust, and debris. Use a soft brush or compressed air. Avoid using liquids directly on electronics.
- Inspecció de l'hèlix: Inspect propellers for cracks, bends, or nicks before and after every flight. Replace damaged propellers immediately.
- Inspecció del marc: Check the carbon fiber arms (5.0 mm thickness) and other frame components for any signs of stress, cracks, or damage. Tighten any loose screws.
- Inspecció de motors: Ensure motors (SPEEDX2 2407E 1750KV) spin freely and quietly. Check for any debris lodged in the motor bells.
- Cablejat: Periodically inspect all wiring for fraying, cuts, or loose connections.
- Cura de la bateria: Follow LiPo battery best practices: do not overcharge or over-discharge, store at storage voltage, and inspect for swelling or damage.
7. Solució De Problemes
Aquesta secció tracta problemes comuns que podeu trobar.
| Problema | Causa possible | Solució |
|---|---|---|
| El dron no s'arma | Throttle not at minimum; arming switch not engaged; pre-arm checks failed (e.g., low battery, no receiver signal) | Ensure throttle is at zero. Check arming switch. Verify receiver is bound and connected. Check Betaflight OSD for pre-arm warnings. |
| Sense canal de vídeo FPV | O4 Air Unit Pro not powered; antenna loose; channel mismatch; goggles not powered | Check power to the drone and O4 Air Unit Pro. Secure antenna. Ensure goggles and O4 Air Unit Pro are on the same channel. Charge goggles. |
| Vol inestable / Deriva | Damaged propeller; unbalanced motor; incorrect PID tuning; sensor calibration issue | Inspect and replace damaged propellers. Check motors for debris. Recalibrate accelerometer in Betaflight. Consult GEPRC support for PID tuning advice if needed. |
| Temps de vol curt | Battery degradation; incorrect battery size; aggressive flying style | Inspect battery for swelling or damage, replace if necessary. Use recommended 6S LiPo 1500-2000mAh batteries. Adjust flying style. |
| GPS not locking (if installed) | Poor satellite visibility; incorrect configuration; interference | Fly in an open area with clear sky. Verify GPS settings in Betaflight. Ensure GPS module is mounted away from other electronics. |
8. Especificacions
Detailed technical specifications for the GEPRC Vapor-D6 O4 Pro FPV Drone.
- Model: Vapor-D6 O4 Pro
- Marc: GEP-Vapor-D6 O4 Pro frame
- distància entre eixos: 274.60 mm
- Top Plate Thickness: 2.0 mm
- Middle Plate Thickness: 2.0 mm
- Bottom Plate Thickness: 2.5 mm
- Arm Thickness: 5.0 mm
- Controlador de vol (FC): GEP-F722-HD v2
- MCU: STM32F722
- Giroscopio: ICM42688-P (SPI)
- Baròmetre: Sí
- OSD: Betaflight OSD w/AT7456E
- ESC: TAKER H60_BLS 60A 4IN1 ESC
- VTX: O4 Air Unit Pro Transmission Module
- Càmera: O4 Air Unit Pro Transmission Module Camera
- Antena: O4 Air Unit Pro Antenna
- Connector: XT60
- Optional GPS: GEP-M10 GPS
- Motors: GEPRC SPEEDX2 2407E 1750KV
- Hèlixs: HQprop 6X3.5X3
- PNP Version Weight: 465 g ± 5 g
- Opcions del receptor: PNP/GEPRC ELRS24/TBS Nano RX
- Bateria recomanada: 6S LiPo 1500mAh – 2000mAh
- Estimated Flight Time: 14-19 min
- Dimensions del producte: 10.75 cm de llargada x 11 cm d'amplada x 3.15 cm d'alçada
- Pes de l'article: 1005 Grams (shipping weight, includes packaging)

Imatge 8.1: Part inferior view of the GEPRC Vapor-D6 O4 Pro FPV Drone, showing the motor mounts and structural design.
9. Garantia i Suport
GEPRC products are covered by a manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and product type. Please retain your proof of purchase for warranty claims.
- Reclamacions de garantia: For warranty service, contact the retailer where you purchased the product or GEPRC customer support directly.
- Suport tècnic: For technical assistance, setup guidance, or troubleshooting beyond this manual, visit the official GEPRC weblloc o poseu-vos en contacte amb el seu equip d'atenció al client.
- Recursos en línia: Additional resources, firmware updates, and community forums may be available on the GEPRC weblloc.







