1. Introdución
This manual provides detailed instructions for the installation, operation, and maintenance of your Fitcamx 4K Dash Cam, Model HD2-3818. This dash cam is designed for specific BMW 7 Series and i7 models from 2023 to 2026 (G70 chassis). Please read this manual thoroughly before installation and use to ensure proper functionality and safety.
Important: Before proceeding with installation, carefully compare the vent hole shape of your vehicle's overhead console cover with the images provided to ensure compatibility with model HD2-3818.

Image 1.1: Compatibility check for HD2-3818 vs HD2-3828 based on vent hole shape.
2. Produto rematadoview
The Fitcamx 4K Dash Cam (HD2-3818) offers a seamless, OEM-style integration into your BMW 7 Series or i7. It records in Ultra High Definition (UHD) 2160P at 30 frames per second, capturing clear video footage. Key features include built-in WiFi for app connectivity, loop recording, and a G-Sensor for automatic incident detection.

Image 2.1: Before and after installation demonstrating the integrated OEM look.
3. Contido do paquete
Verifique que todos os elementos que se indican a continuación estean incluídos no seu paquete:
- Fitcamx Front Camera (HD2-3818)
- Tarxeta MicroSD de 64 GB
- Y-Cable (Power connection cable)
- Lector de tarxetas
- Ferramenta Pry
- Manual de usuario

Image 3.1: Contents of the Fitcamx dash cam package.
4. Instalación
Follow these steps to install your Fitcamx dash cam. No wire splicing is required, and the installation is designed to be plug-and-play.
- Retire a tapa traseira: Carefully detach the existing overhead console cover in your vehicle.
- Remove from the front with a plastic pry tool: Use the provided pry tool to gently unclip the front section of the cover.
- Connect the Y-Cable to the rain sensor plug: Locate the rain sensor plug and connect the Y-cable. This provides power to the dash cam.
- Instala a cámara: Securely place the Fitcamx dash cam into the designated slot.
- Instale a contraportada: Reattach the overhead console cover, ensuring all clips are properly engaged.
- Feito: A instalación está completa.

Image 4.1: Visual installation steps.
Video 4.2: This video provides a step-by-step guide on how to install the Fitcamx dash cam in a BMW vehicle, demonstrating the process of connecting the Y-cable and securing the camera.
5. Funcionamento
The Fitcamx dash cam is designed for automatic operation. Once installed and powered, it will automatically begin recording when your vehicle starts. There is no need to manually start or stop recording for daily use.
5.1 Gravación en bucle
The camera continuously records video. When the storage card is full, the oldest footage will be overwritten by new content. This ensures that recording never stops due to a full memory card. You can set the recording duration per file (e.g., 1, 3, or 5 minutes) via the Fitcamx app.

Image 5.1: Explanation of the loop recording function.
5.2 Sensor G
The built-in G-Sensor detects sudden impacts or collisions. In the event of such an incident, the camera automatically locks the current video footage, evitando que sexa sobrescrito pola gravación en bucle. Isto garante que se conserven as probas críticas.

Image 5.2: G-Sensor functionality for incident detection.
5.3 Visión nocturna
The dash cam features advanced optical sensor technology (CMOS) and a large f/1.6 aperture lens, combined with WDR (Wide Dynamic Range) technology, to provide clear video recording even in low-light conditions or at night. This enhances visibility of license plates and road signs.

Image 5.3: Dash cam performance in low light conditions.
6. App & WiFi Connectivity
The Fitcamx dash cam features built-in WiFi for seamless connection to its dedicated mobile application. This allows you to view vivir footage, reprodución de vídeos gravados, descarga files to your smartphone, and adjust camera settings.
6.1 Conexión á aplicación
- Download the "FITCAMX" app from the App Store (iOS) or Google Play Store (Android).
- Turn on your vehicle to power the dash cam.
- On your smartphone, go to WiFi settings and connect to the WiFi network broadcast by the dash cam (usually named "FITCAMX_XXXX"). The default password is typically "12345678".
- Open the FITCAMX app. You should now be able to access the camera's functions.
Note: Connecting to the dash cam's WiFi will temporarily disconnect your phone from other WiFi networks. The camera records automatically even without a WiFi connection, so you only need to connect when you wish to manage or view files.

Image 6.1: Fitcamx app interface and WiFi connectivity.
Video 6.2: This video demonstrates how to connect the Fitcamx dash cam to your smartphone via WiFi and use the companion application to view e xestionar foo gravadotage.
7. Mantemento
To ensure optimal performance and longevity of your Fitcamx dash cam, follow these maintenance guidelines:
- Limpar a lente: Regularly wipe the camera lens with a soft, lint-free cloth to ensure clear video quality. Avoid abrasive materials.
- Comprobar tarxeta SD: Periodically check the MicroSD card for errors or degradation. It is recommended to format the card every few months using the app or a computer to maintain performance. Replace the card if it shows signs of failure.
- Actualizacións de firmware: Check the Fitcamx official websitio web ou aplicación para ver se hai actualizacións de firmware dispoñibles para garantir que a túa cámara para salpicadero teña as últimas funcións e correccións de erros.
- Temperatura de funcionamento: The dash cam is designed to operate within a temperature range of -20°C to 85°C (-4°F to 185°F). Avoid exposing it to extreme temperatures outside this range for extended periods.
8 Solución de problemas
If you encounter issues with your Fitcamx dash cam, refer to the following common problems and solutions:
| Problema | Causa posible | Solución |
|---|---|---|
| A cámara do salpicadero non se acende. | No power supply; loose cable connection. | Ensure the vehicle is on and the Y-cable is securely connected to the rain sensor plug. Check vehicle's fuse for power. |
| WiFi connection fails or is unstable. | Incorrect password; interference; app issue. | Verify the WiFi password (default: 12345678). Ensure you are close to the camera. Restart the app and dash cam. |
| Vídeo footage está borrosa ou pouco clara. | Lente suxa; película protectora aínda na lente. | Clean the camera lens with a soft cloth. Remove any protective film from the lens. |
| SD card error or recording stops. | Corrupted SD card; incompatible card; full card. | Format the MicroSD card via the app or computer. Ensure the card is a high-speed (Class 10 or U3) card. Replace the card if issues persist. |
| Cannot connect phone to CarPlay/Bluetooth and dash cam WiFi simultaneously. | Este é o comportamento esperado. | The dash cam records automatically. You only need to connect to its WiFi when you want to view or download footage. CarPlay/Bluetooth functionality is not affected by the dash cam's recording. |
If the problem persists after trying these solutions, please contact Fitcamx customer support for further assistance.
9. Especificacións
| Característica | Detalle |
|---|---|
| Número de modelo | HD2-3818 |
| Resolución de captura de vídeo | Frontal 2160P (4K UHD) |
| Velocidade de cadros | 30 fps |
| Tecnoloxía de sensores ópticos | CMOS |
| Características especiais | Built-in WiFi, OEM Style, Loop Recording, G-Sensor |
| Tecnoloxía de conectividade | Powerline (for vehicle integration) |
| Método de control | Aplicación |
| Tipo de vehículo compatible | BMW 7 Series & i7 (2023-2026 G70) |
| Temperatura de funcionamento | -20 °C a 85 °C (-4 °F a 185 °F) |
| Almacenamento incluído | 64GB MicroSD Card (supports up to 256GB) |
| Peso do elemento | 1.5 libras |
| Dimensións do artigo (D x W x H) | 12" D x 9" W x 4" H |
10. Garantía e soporte
The Fitcamx 4K Dash Cam (HD2-3818) comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures the product functions as intended under normal use.
For technical support, warranty claims, or any questions regarding your product, please contact Fitcamx customer service. Refer to the contact information provided on the Fitcamx official websitio web ou a documentación da súa compra.
Fitcamx provides lifetime after-sales support for its products.