1. Introduction
The Fitcamx 4K Dashcam is designed to provide high-quality video recording for your vehicle, ensuring comprehensive coverage of your journeys. Featuring 4K Ultra High Definition recording, superior night vision, seamless loop recording, and G-Sensor technology, this dashcam offers reliable performance and integrates perfectly with compatible Mazda models. This manual provides detailed instructions for installation, operation, maintenance, and troubleshooting.
2. Safety Information
- Ensure the dashcam is installed securely and does not obstruct your view or interfere with vehicle controls.
- If you are unsure about the installation process, it is recommended to seek professional assistance.
- Regularly check the dashcam's functionality to ensure it is recording properly.
- Do not attempt to disassemble or modify the dashcam, as this may void the warranty and cause damage.
3. Package Contents
Please verify that all items are present in your package:
- 1 × Dash Cam
- 1 × Memory Card (pre-installed or separate)
- 1 × Front Cam Cable
- 1 × Removal Pry Tool
- 1 × User Manual
4. Product Overview
Key Features
- 4K UHD High Resolution: UHD 4K Video combined with an advanced Novatek chip and f/1.6 big aperture lens delivers clearer videos up to 2160P resolution. The CMOS sensor enhances image performance, capturing more driving details.
- Superior Night Vision: Equipped with wide dynamic range technology, the video is displayed in optimal condition. This dashcam captures vivid moments clearly even at night, including license plates and road signs.
- Loop Recording & G-Sensor: Seamless loop recording automatically overwrites the oldest footage with new content when the memory card is full. The G-Sensor detects sudden collisions, saving relevant footage and locking it to file to prevent disputes.
- WiFi & App Compatibility: Connects to the Viidure APP (available for Apple iOS & Android) for live viewing, playback, and settings management.
- Perfect Fit: Designed to 1:1 restore the shape of the original car rearview mirror cover, offering a low-key, fashionable style that perfectly integrates with your car's interior.
5. Setup
5.1 Compatibility Check
To ensure you have the correct product for your vehicle, please follow these steps:
- Provide your car model and year.
- Refer to the image below to take a photo of your rearview mirror area.
- Send the above information to the seller for confirmation.

Image: Steps to confirm product compatibility by providing vehicle details and a photo of the rearview mirror area.
Identifying the Correct Model

Image: Visual guide to distinguish between HD2-6264 (no vent slots on the right), HD2-6607 (with vent slots), and HD2-D3800 (European version, check original part numbers DEPTH-67Z31, DEPTH-67Z32).
5.2 Installation
The Fitcamx Dashcam is designed for easy installation. Just remove the original back cover and replace it with the Fitcamx dashcam unit.
Power Options

Image: Demonstrates different power connection methods including wiring-free (sunroof plug), fuse box power, and OBD power.
The dashcam supports various power methods: wiring-free (sunroof plug), fuse box power (supports all models), and OBD power (supports all models). The plug and play cable for sunroof power is sent by default. If you require a fuse box cable or OBD cable, please contact support.
Installation Steps (Example: Mazda 3 MY2019+ with Sunroof Power)
Video: This video demonstrates the installation process for the Fitcamx Dashcam, specifically for Mazda models with sunroof power. It shows how to remove the original cover, connect the power cable, and secure the new dashcam unit.

Image: Step-by-step visual guide for installing the dashcam in a Mazda 3 MY2019+ using sunroof power.
- Carefully pry open the existing cover near the rearview mirror using the provided pry tool.
- Disconnect the original power cable from its socket.
- Connect the dashcam's power cable to the vehicle's power source (sunroof plug).
- Route the cable neatly to avoid interference.
- Secure the dashcam unit in place within the housing.
- Reattach the vehicle's original cover, ensuring it snaps firmly into place.
- Verify all connections are secure and the dashcam is firmly mounted.
- Test the dashcam functionality by turning on the vehicle's ignition.
- Perform a final check of the installation to ensure proper fit and function.
Rear Camera Installation (for Dual Cam versions)
For '2K Dual Cam 64GB' & '4K Dual Cam 128GB' versions, a rear camera is included. It can be mounted on the rear windshield or facing the cabin.

Image: Illustrates the wiring path for the rear camera and shows examples of mounting on the rear windshield or facing the cabin. Includes components of the rear cam kit.
The rear camera kit includes a non-waterproof rear camera and a rear camera cable. Route the cable from the front cam to the desired rear camera mounting location (rear windshield or facing cabin) and connect it.
5.3 Memory Card Installation
Insert the provided memory card (or a compatible Class 10 SanDisk/KIOXIA/Samsung memory card, 32GB or 64GB recommended, maximum 256GB) into the dashcam's memory card slot. Ensure it is inserted correctly until it clicks into place.
6. Operating Instructions
6.1 Automatic Operation
The Fitcamx Dashcam is designed for automatic operation. It will automatically turn on when the car's ignition is switched on and turn off when the car is turned off. No manual intervention is required for daily recording.
6.2 Loop Recording
The dashcam features seamless loop recording. When the memory card is full, the oldest footage will automatically be overwritten by new recordings, ensuring continuous video capture without manual management of storage space.
6.3 G-Sensor
The built-in G-Sensor detects sudden impacts or collisions. In the event of such an incident, the sensor automatically saves and locks the relevant video footage, preventing it from being overwritten by loop recording. This ensures critical evidence is preserved.
6.4 WiFi & App Connection (Viidure APP)
The Fitcamx Dashcam connects to the Viidure APP (available for Apple iOS & Android) via WiFi for live viewing, video playback, and managing dashcam settings.
Connecting to iPhone
- First, turn off Cellular Data in your phone's settings.
- Then, connect to the dashcam's WiFi network (usually named FITCAMX_XXXX).
- If your phone is connected to the car's CarPlay, you need to turn off Bluetooth before connecting to the camera's WiFi.
- Ensure the Viidure App has album and network permissions enabled in your phone's settings.
Connecting to Android Phone
- After connecting to the camera's WiFi, your phone may prompt that it cannot access the Internet. Please click "Keep WLAN Connection".
- Close Mobile Data first, then connect to the dashcam's WiFi.
Saving App Settings
After adjusting settings in the App, please press and hold the power button of the camera to turn off the camera, then press the power button briefly to turn on the camera. This action saves the new settings.
6.5 Video Playback
For optimal video playback on a computer, PotPlayer and KMplayer are recommended. Note that if your computer's specifications are too low, it may cause choppy playback, especially for 4K resolution videos.
7. Maintenance
7.1 Memory Card Management
Regularly format the memory card via the App settings to ensure optimal performance and prevent file corruption. If the App album appears empty, insert the memory card into a computer to check for damage or incompatibility. If damaged or incompatible, replace the memory card. It is recommended to use Class10 specification SanDisk/KIOXIA/Samsung memory cards of 32GB or 64GB capacity (maximum supported size is 256GB).
7.2 Regular Functionality Check
Periodically check that the camera is working properly and recording as expected. This can be done by connecting to the App and viewing live footage or reviewing recorded videos.
8. Troubleshooting
- App Cannot Save Settings: After setting the App, press and hold the camera's power button to turn off the camera, then press the power button briefly to turn on the camera to save the new settings.
- APP Video File Empty/No Video Loaded:
- Open App settings to format the memory card and then record video.
- If the App album still has no video, insert the memory card into a computer to check whether the memory card is damaged or not compatible with the camera. If so, you need to replace the memory card. Recommended: Class10 SanDisk/KIOXIA/Samsung 32GB/64GB (Max 256GB).
- Cannot Connect 2 Phones Simultaneously: WiFi only supports connecting one phone at the same time. If another phone needs to be connected, you must first disconnect the WiFi of the first phone.
- Incorrect Video Timestamp / No Recorded Video: If the timestamp is wrong or there is no video recorded during some time periods after a complete power failure (e.g., car repair, maintenance, or battery replacement), you need to reconnect the camera's WiFi with your phone to synchronize the camera's time with your phone's time. Please regularly check that the camera is working properly.
- Forgot WiFi Name or Password: Press and hold the camera key for 20 seconds, or use a paperclip to press the reset button to restore factory settings.
- Cannot Find WiFi:
- First, remove the memory card and then search for WiFi, because memory card failure can cause the camera to have no WiFi.
- Press and hold the camera button for 20 seconds, or use a paper clip to press the reset button to restore factory settings.
- Check whether the camera's light is always on. If there is no light, it means there is no power supply, then there will be no WiFi.
9. Specifications
| Feature | Value |
|---|---|
| Aperture | f/1.6 |
| Working Temperature | -20°C - 85°C |
| Warranty | 365 Days |
| Weight | 1KG |
| Dimensions (W x H x D) | 20cm X 20cm X 10cm |
| Power Source | Corded Electric |
| APP Compatibility | FITCAMX |
| Built-in Screen | No |
| Loop-Cycle Recording Feature | Yes |
| Audio Recorded | Yes |
| Maximum Video Frame Rate | 30fps |
| NightShot Function | Yes |
| Rear Camera | NONE (for single front cam versions) |
| Original Package | Yes |
| Touch Screen | No |
| Screen Ratio | 16:9 |
| Memory Card Required Reading Speed | Class 10 |
| View angle | 170° |
| Camera Resolution | 3840x2160 |
| Video Code | H.265 |
| Video Format | TS |
| Is Batteries Included | Yes (for internal clock/settings, not for operation) |
| Special Features | G-Sensor, SD/MMC card, Automatic White Balance, Wide Dynamic Range, WiFi function, 3D DNR |
| Max External Memory | 256G |
| Number Of Lenses | 1 (Front Cam) |
| Pixels | 800Mega |
| Display Size | 3.2 inches |
| GPS logger | NONE |
| Battery | None (powered by car) |
| Assembly Mode | Hidden Type |
| Chipset Manufacturer | NOVATEK |
| Frames Per Second | 30 |
| Origin | Mainland China |
| Item Type | Car DVR |
| Certification | CE, FCC, RoHS, pse |
| Interface | Wi-fi, Micro SD/TF |
10. User Tips
- High Endurance SD Card: Always use a high endurance SD card for any dashcam to prevent memory card malfunctions and ensure reliable recording.
- Compatibility Confirmation: If you are unsure about compatibility, provide your car model and year, along with a photo of your rearview mirror cover, to the seller for confirmation before purchasing.
- European Models: For European Mazda CX-30 models, specifically check for the HD2-D3800 version with original part numbers DEPTH-67Z31 or DEPTH-67Z32 to ensure a perfect fit.
- Time Synchronization: After any car repair, maintenance, or battery replacement that might cause a complete power failure to the camera, reconnect the camera's WiFi with your phone to synchronize the camera's time.
11. Warranty & Support
11.1 Product Warranty
Our store provides a one-year product warranty. If the product experiences quality problems within one year of purchase, we will provide you with free replacement parts. If it is confirmed that the product cannot be repaired, we can replace it with a new product for free.
11.2 Damage & Modifications
For damage caused by accident, misuse, or unauthorized modification, if replacement parts are required, the buyer is responsible for the cost of parts and associated shipping fees.