Introduction
Thank you for choosing the COOAU D30S Dash Cam. This device is designed to provide comprehensive recording of your driving environment, both front and inside the vehicle, ensuring your safety and documenting your journeys. Equipped with advanced features like 4K recording, GPS, Wi-Fi, and superior night vision, the D30S is a reliable companion for every driver.
This manual provides detailed instructions for the setup, operation, and maintenance of your dash cam. Please read it thoroughly before use to ensure proper functionality and to maximize your device's potential.
Product Components
The COOAU D30S Dash Cam package includes the following items:
- 4K Dash Cam (D30S) x 1
- 256GB Memory Card x 1 (pre-formatted and inserted)
- 11.81ft USB Data Cable x 1
- User Manual x 1
- Car Charger x 1
- Suction Mount x 1

Image: All components included in the COOAU D30S Dash Cam package.
Setup and Installation
Follow these steps to properly set up your COOAU D30S Dash Cam:
- Prepare the Memory Card: The included 256GB memory card is pre-formatted and inserted. If using a different card, ensure it is a high-speed (Class 10 or higher) U3 Micro SD card and format it within the dash cam settings before first use.
- Attach the Suction Mount: Clean the windshield area where you intend to mount the dash cam. Press the suction cup firmly against the glass and flip the lever to secure it. Ensure the camera has a clear view of the road and the cabin.
- Mount the Dash Cam: Slide the dash cam onto the suction mount until it clicks into place. Adjust the angle of the camera to ensure optimal recording coverage for both the front and interior lenses.
- Connect Power: Plug the car charger into your vehicle's cigarette lighter socket. Connect the USB data cable from the car charger to the dash cam's power input port. Route the cable neatly along the windshield trim to avoid obstructing your view.
- Power On: The dash cam will automatically power on and begin recording when your vehicle's ignition is turned on.

Image: The COOAU D30S Dash Cam with its suction cup mount.

Image: Proper positioning and adjustment of the dash cam on the windshield.
Operating Instructions
Recording Modes
The D30S supports various recording configurations:
- Dual Recording (Front 2.5K + Inside 1080P): Simultaneously captures video from the front (170° wide angle) and cabin (150° wide angle) cameras. Ideal for rideshare drivers and comprehensive incident recording.
- Single Front Recording (4K): When only the front camera is active, it records in stunning 4K (3840x2160P@30fps) resolution, providing exceptional clarity for road signs and license plates.

Image: Illustration of simultaneous front and interior recording capabilities.

Image: Visual representation of the wide-angle coverage for both front and cabin cameras.
Loop Recording
The dash cam records video in continuous loops. When the memory card reaches its capacity, the oldest unlocked files are automatically overwritten by new recordings. This ensures continuous recording without manual intervention. The included 256GB card provides ample storage before overwriting occurs.

Image: The dash cam's display showing active recording and indicating loop recording functionality.

Image: Storage capacity illustration for different memory card sizes, emphasizing 256GB support.
Superior Night Vision
The D30S features F1.8 aperture and WDR (Wide Dynamic Range) technology for improved imaging in various lighting conditions. The cabin camera is equipped with 4 infrared (IR) LED lights, enhancing night vision capabilities to capture clear details even in dark environments, making it ideal for nighttime driving or rideshare operations.

Image: Demonstration of the dash cam's superior night vision capabilities for both exterior and interior recording.

Image: Visual explanation of Wide Dynamic Range (WDR) technology.
Built-in Wi-Fi & APP Connectivity
Connect your D30S dash cam to the "COOAUDash" app on your smartphone via built-in Wi-Fi. This allows you to conveniently view, download, and share videos, as well as adjust settings directly from your phone. Firmware updates (OTA) can also be performed through the app.

Image: The COOAUDash app interface on a smartphone, demonstrating Wi-Fi connectivity.
Built-in GPS Tracking
The integrated GPS module precisely records your vehicle's location and driving route. Time is automatically updated via GPS, ensuring accurate timestamps on your recordings. This feature provides reliable details for incident reconstruction.

Image: Real-time display of driving route, location, and speed via built-in GPS.
Adjustable G-Sensor
The adjustable G-sensor detects sudden shaking or collisions. When an impact is detected, the dash cam automatically locks the current video segment, preventing it from being overwritten by loop recording. This ensures critical footage is preserved.
24-Hour Parking Mode
With the optional hardwire kit (not included), the D30S can monitor your vehicle for 24 hours even when the engine is off. It supports:
- Motion Detection: Automatically records when movement is detected around the vehicle.
- Collision Detection: Records when a collision or impact is detected.
- Time-Lapse Recording: Continuously records at a low frame rate (e.g., 1 sec/1 fps) to save storage space and power while providing a comprehensive overview of events.
Note: A hardwire kit is required for 24-hour parking mode functionality.

Image: Overview of 24-hour parking monitor features: Motion Detection, Collision Detection, and Time-Lapse.
Picture-in-Picture Display Switching
The dash cam allows you to switch between different display modes on its screen, including front view only, interior view only, or a picture-in-picture display showing both views simultaneously.

Image: Various display modes available on the dash cam screen.
Maintenance
Memory Card Management
Regularly format your memory card (at least once a month) to ensure optimal performance and prevent data corruption. This can be done through the dash cam's settings menu. Back up any important videos before formatting, as it will erase all data on the card.
Cleaning the Device
Use a soft, dry cloth to clean the dash cam's body and lenses. Avoid using abrasive cleaners or solvents, as they may damage the device. Keep the lenses free from dust and smudges to ensure clear video quality.
Troubleshooting
Problem | Possible Cause | Solution |
---|---|---|
Dash cam does not power on. | No power supply; faulty car charger/cable. | Check car charger connection and vehicle's cigarette lighter socket. Try a different USB cable or car charger. |
Recording stops or freezes. | Memory card issue (full, slow, corrupted). | Format the memory card. Use a high-speed (Class 10, U3) Micro SD card. Replace the memory card if issues persist. |
Poor video quality. | Dirty lens; protective film on lens; incorrect resolution settings. | Clean the camera lenses. Remove any protective film. Check video resolution settings in the menu. |
Wi-Fi connection issues. | Incorrect Wi-Fi password; app not updated. | Ensure correct Wi-Fi password. Update the "COOAUDash" app to the latest version. Restart both dash cam and phone. |
Parking mode not working. | No hardwire kit installed; incorrect settings. | Install a hardwire kit (sold separately). Ensure parking mode is enabled and configured correctly in settings. |
Specifications
Feature | Detail |
---|---|
Model Name | D30S |
Product Dimensions | 6.3 x 2.76 x 4.33 inches |
Item Weight | 13.1 ounces |
Video Capture Resolution | 4K(2160P) Single Front Recording, Dual 2.5K(1440P)+1080P Front and Inside Recording |
Field Of View | 170 Degrees (Front), 150 Degrees (Inside) |
Connectivity Technology | Wi-Fi, USB |
Special Features | Built-in GPS, Wi-Fi and APP connect, 256GB memory Card included, Loop recording, Voice recording, Accident lock, 24 hours parking monitor, G-sensor, Super night vision |
Mounting Type | Windshield Mount (Suction) |
Operating Temperature | Equipped with super capacitor for high/low temperature resistance. |
Warranty and Customer Support
COOAU provides a lifetime warranty for the D30S Dash Cam. If you encounter any questions or require technical assistance, please do not hesitate to contact our customer care team. We offer 7*24 high-quality after-sales service and technical support.
For further assistance, you may also refer to the official User Manual PDF: Download User Manual (PDF)
We support replacement or full refund within 30 days of purchase if there are any doubts or issues with the product.