4K Plug And Play Car Wifi DVR Video Recorder User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your BigBigRoad 4K Plug And Play Car Wifi DVR. Designed specifically for the Bestune T90 2024, this advanced dash cam offers high-resolution video recording, night vision capabilities, parking monitoring, and seamless WiFi connectivity for real-time viewing and playback on your smartphone.

2. Setup

2.1. App Installation and Connection

2.1.1. App Download and Installation

• For Android: Search for "Viidure" in the Google Play Store and install the application.
• For iOS: Search for "Viidure" in the App Store and install the application.

2.1.2. Connect Mobile Phone with DVR by WiFi

1. Open the "Viidure" app on your smartphone.
2. Enter your mobile phone's WiFi settings and select the hotspot named "CARDV...".
3. Enter the default password: 12345678.
4. Return to the "Viidure" app to complete the connection.

2.2. Physical Installation

Please read carefully before installation. Ensure the car engine is turned off before proceeding.

2.2.1. Initial Steps

1. Insert a high-speed TF-Card (Class 10 or above, maximum 128GB) into the card slot on the Car DVR.
2. Confirm the installation position, ideally near the rearview mirror or in the middle of the windshield for optimal view. Clean the area thoroughly.
3. Attach the DVR using the provided 3M double-sided tape to the selected position.

2.2.2. Rain Sensor Installation (Plug and Play Method)

This method utilizes your car's existing rain sensor wiring for a clean, hidden installation without damaging original car lines or affecting warranty.

Image: Step-by-step guide for connecting the dash cam to the rain sensor.

1. Disassemble the mirror cover.
2. Disconnect the original rain sensor plug.
3. Connect the dash cam cable's male plug with the rain sensor's male plug.
4. Connect the dash cam cable's female plug with the rain sensor's female plug.
5. Assemble the dash cam cover to finish the installation.

2.2.3. Standard ACC Power Cable Installation

If the rain sensor cable is not compatible, use the standard ACC power cable. This method involves connecting to the car's fuse box.

Image: Detailed wiring diagram for the ACC power cable.

Image: Example of connecting the power cable to the car's fuse box.

• Yellow B+ wire: Connect to a constant power source (+12V) that is not controlled by the key switch (e.g., car interior light, brake light).
• Red ACC wire: Connect to a switched power source (+12V) that turns on/off with the car's ignition key (e.g., car cigarette lighter, FM radio).
• Black GND wire: Connect to a ground point, usually a metal screw on the car's chassis.
• Black wire (single): Connects directly to the dashcam.

For alternative connections, USB or OBD connectors may be available. These typically support WiFi app control but not AV output to a screen.

Image: USB connector for power.

Image: OBD connector for power.

3. Operating Instructions

3.1. Product Structure and Key Description

• Power Button: In recording mode, short press to pause recording or confirm selection in the menu. Long press for 3 seconds to power off. When WiFi is connected, short press to cancel the connection.
• Photo Button: In recording mode, short press to take photos. Long press for 5 seconds to restore factory settings.
• Reset Hole: Use a thin object (e.g., thimble) to short press and restart the device if the Car DVR crashes.
• LED Indicator:
  • Red Light: Blinks when WiFi is connected, stays solid when WiFi is not connected.
  • Blue Light: Flashes when recording, stays solid when recording is stopped.

3.2. Automatic Recording

The Car DVR will automatically power on and begin recording when the car starts. The blue indicator light will flash. When the car engine is turned off, the DVR will automatically save the current recordings and power off. Recorded images are saved as clips on the memory card. When the memory card is full, new clips will automatically overwrite older clips (loop recording). The default recording time is 1 minute per clip.

3.3. Special Features

3.3.1. Collision Locking (G-Sensor)

The current video will be automatically locked and saved during driving events such as sudden braking or collision. These locked videos will not be overwritten by the loop recording function, ensuring critical footage is preserved.

Image: Illustration of the collision locking feature.

3.3.2. 24 Hours Parking Monitor

If the DVR detects a shock from external forces (e.g., a bump or attempted theft) while parked, the Parking Mode function will automatically activate and begin recording. This feature requires a continuous power supply (e.g., via a hardwire kit).

Image: Visual representation of the 24-hour parking monitor.

3.3.3. Wide Dynamic Range (WDR)

WDR technology ensures very high video and image quality, regardless of whether the outside light is too bright or too dark, providing balanced exposure in challenging lighting conditions.

Image: Comparison of video quality with and without WDR in varying light.

3.3.4. WiFi Function and App Connectivity

The built-in 2.4GHz wireless WiFi allows for real-time surveillance, viewing, and playback of recorded videos directly on your smartphone via the dedicated app. The WiFi reception range is generally within 10 meters, though this may vary depending on the environment.

Image: Smartphone screen showing the dash cam app interface and WiFi connection.

3.3.5. Night Vision

Equipped with advanced night vision capabilities, the DVR provides clear and detailed recordings even in low-light or nighttime conditions.

Image: Comparison of daytime, cloudy, and evening recording effects.

3.3.6. Super Wide Angle Lens

The DVR features a 170° view angle, allowing it to monitor up to 6 lanes of traffic, capturing a broad perspective of the road ahead.

Image: Overhead view of a car demonstrating the 170° and 140° view angles, with a road view showing 6 lanes monitored.

3.3.7. Advanced Optical Lens Array

The camera is equipped with an F1.8 large aperture lens, significantly improving light intake. It features 6 optical pieces and a 72-layer coating process, effectively reducing stray light and astigmatism for clearer images.

Image: Diagram illustrating the F1.8 lens and its multi-layered optical components.

3.4. Video Demonstrations

Video: Example footage demonstrating the dash cam's recording quality in various driving conditions, including day and night.

4. Maintenance

4.1. TF Card Maintenance

It is recommended to format the TF card once every other month. Before formatting, ensure you back up any important data. Periodically formatting the DVR memory card helps prevent data loss and ensures the normal, optimal operation of the DVR.

4.1.1. How to Format Memory Card

Open the "Viidure" app, connect to the recorder's WiFi, and navigate to the recorder settings. Select the option to "Format memory card".

5. Troubleshooting

5.1. Common Troubleshooting Questions

Q: Why can't I turn on the DVR?

A: Make sure the DVR is properly connected to your car's power supply when the car is running. The device requires power to operate.

Q: How do I set the date and time of the DVR?

A: Connect your phone to the DVR via WiFi. The date and time will automatically update and synchronize with your phone's settings.

Q: How can I tell if the DVR is recording?

A: If your phone is not connected via WiFi, the blue LED will be flashing when recording and solid when stopped. If your phone is connected via WiFi, both the red and blue LEDs will be flashing when recording.

Q: The APP cannot connect to the DVR?

A: First, ensure the TF card is properly inserted and not faulty, and check if the recorder indicator is blinking. If there's no WiFi hotspot, try replacing the TF card. If the issue persists, use a thimble to press the [Reset] hole to restart the system. Also, try turning off Bluetooth and mobile data on your phone before connecting.

Q: The recorder cannot record?

A: Ensure the TF card is properly inserted and formatted within the device. Verify that the TF card is a high-speed Class 10 original brand card.

Q: Forgot WiFi password or can't find WiFi?

A: Press and hold the camera button for 5-10 seconds to restore factory settings. The default WiFi hotspot is "CARDV..." and the password is "12345678".

Q: The photo button doesn't work?

A: Check whether the key bar cable is loose or damaged.

Q: The recorder did not record or recorded a noise?

A: If there is no sound in the recording, check if the key cable is loose. If there is recording noise, it may be related to the WiFi antenna; try checking and repositioning the DVR WiFi antenna.

Q: The car starts, but the DVR automatically shuts down after one minute?

A: Check whether the red ACC wire is correctly powered on and receiving a consistent signal from the ignition.

5.2. App Compatibility

If you experience issues with the "Viidure" app (e.g., cannot download or enable), it might be due to mobile phone system compatibility. You may try alternative apps such as "Timacam" or "Roadcam" as a reference.

6. Specifications

6.1. Special Car Recorder Configuration Table

6.2. General Specifications

• Power Source: Corded Electric
• Built-in Screen: Yes (Note: Display Size is "NO SCREEN" for the DVR unit itself, referring to external app display)
• Audio Recorded: Yes
• Maximum Video Frame Rate: 30 FPS
• NightShot Function: Yes
• Rear Camera: Yes
• Original Package: Yes
• Touch Screen: No
• Screen Ratio: 4:3
• Memory Card Required Reading Speed: Class 10
• View Angle: 170°
• Video Format: MOV
• Is Batteries Included: No
• Special Features: Real Time Surveillance, Wide Dynamic Range, G-Sensor, Motion Detection, WiFi Function, Anti Vibration, SD/MMC Card Support, Automatic White Balance, Anti Fog
• Number Of Lenses: 2 (for dual camera models)
• Display: IPS (for models with built-in screen, otherwise via app)
• Item Type: Car DVR
• Certification: CE, FCC, RoHS
• Interface: Micro SD/TF, Wi-Fi, AV-Out
• OSD Language: Albanian, Arabic, Armenian, Azerbaijani, Belarusian, Boolean text (Dutch South Africa), Bulgarian, Catalan, Chinese (Simplified), Chinese (Traditional), Croatian, Czech, Danish, Dutch, English, Estonian, Filipino, Finnish, French, Galicia, Georgian, German, Greek, Haitian Creole, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Irish, Italian, Japanese, Korean, Latin, Latvian, Lithuanian, Macedonian, Malay, Maltese, Norwegian, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spain's Basque, Spanish, Swahili, Swedish, Thai, Turkish, Ukrainian, Urdu India, Vietnamese, Welsh, Yiddish
• GPS Logger: None
• Battery: None
• Assembly Mode: Hidden Type
• Origin: Mainland China

7. User Tips

• TF Card Maintenance: Regularly format your TF card (e.g., monthly) after backing up important data. This practice is crucial for preventing data corruption and ensuring consistent, reliable performance of your DVR.
• App Connectivity: If you encounter issues connecting the app, try disabling Bluetooth and mobile data on your phone temporarily.
• Power Supply: Always ensure a stable power connection to the DVR, especially for features like 24-hour parking monitoring, which requires continuous power.

8. Warranty and Support

For more detailed information, diagrams, or specific instructions not covered in this manual, please refer to the official PDF user manual available at: User Manual (PDF).

If you find any accessories missing upon receipt, please contact customer service for assistance.