Develuck T321D 7-inch Car Intelligent System User Manual

1. Introduction

The Develuck T321D is a 7-inch in-dash car intelligent system designed to enhance your driving experience with advanced multimedia and navigation capabilities. Featuring the Android 13 operating system, an 8-core processor, 2GB RAM, and 32GB ROM, this device offers smooth performance and extensive functionality. It supports wireless Apple CarPlay and Android Auto for seamless smartphone integration, GPS navigation, Bluetooth 5.1 for hands-free communication and audio streaming, and high-speed 5.8GHz WiFi. The system also includes HD video playback and supports an optional rearview camera for improved safety.

Figure 1: Develuck T321D Car Intelligent System in use.

2. Package Contents

Please check the package carefully to ensure all items are present and in good condition.

• Develuck T321D Main Unit (7-inch display)
• Car Charger (Power Cable)
• AUX Cable
• Adhesive Mount (for dashboard installation)
• Suction Cup Mount (alternative mounting option)
• User Manual
• GPS Module
• Optional: 6m Rear Camera
• Optional: TF Card

Figure 2: Contents of the Develuck T321D package.

3. Specifications

Figure 3: Product dimensions.

4. Setup

4.1 Mounting the Device

The Develuck T321D offers flexible installation options using either the adhesive mount or the suction cup mount.

1. Choose a Location: Select a suitable flat surface on your car's dashboard that does not obstruct your view or interfere with driving controls.
2. Clean the Surface: Ensure the chosen surface is clean and dry before applying the mount.
3. Attach the Mount:
   • Adhesive Mount: Peel off the protective film from the adhesive pad and firmly press the mount onto the dashboard. Hold for a few seconds to ensure a strong bond.
   • Suction Cup Mount: Press the suction cup firmly against the dashboard and engage the locking lever to secure it.
4. Attach the Device: Connect the main unit to the chosen mount. Ensure it is securely fastened and adjusted to your preferred viewing angle.

Figure 4: Installation methods for the device.

4.2 Connecting Cables

Identify the ports on the rear of the device for proper connections.

• Power Hole: Connect the provided car charger to this port and plug the other end into your car's cigarette lighter socket.
• Cable Hole Rear Camera (Optional): If you have the optional rearview camera, connect its cable here.
• TF Card Slot (Optional): Insert a TF card for additional storage if desired.
• GPS Port: Connect the external GPS module to this port for accurate navigation and tracking.
• AUX Cable: Use the AUX cable to connect the device to your car's audio input for sound output, if not using FM transmission or Bluetooth audio.

Figure 5: Rear ports and connections.

4.3 Initial Power On and Settings

1. After connecting the power, the device should automatically power on when your car starts.
2. Follow the on-screen prompts to select your language, time zone, and other initial settings.
3. Connect to your car's WiFi hotspot or a mobile hotspot using the 5.8GHz WiFi for internet access and app downloads.

5. Operating Instructions

5.1 Android 13 System Overview

The device runs on Android 13, providing a familiar and intuitive interface. You can navigate through apps, settings, and features using the 7-inch touch IPS screen. The 8-core chip and 2GB RAM ensure smooth operation and multitasking.

Figure 6: Android 13 system architecture.

5.2 Apple CarPlay and Android Auto

The system supports wireless Apple CarPlay and Android Auto, allowing you to integrate your smartphone for navigation, music, calls, and messages.

1. Ensure Bluetooth and WiFi are enabled on both your smartphone and the Develuck T321D.
2. On the Develuck T321D, select the CarPlay or Android Auto icon.
3. On your smartphone, search for and connect to the Develuck T321D via Bluetooth.
4. Follow any on-screen prompts to establish the wireless connection. Once connected, your phone's interface will be mirrored and optimized for the car display.

Figure 7: Wireless Apple CarPlay connection.

Figure 8: Wireless Android Auto connection.

5.3 Bluetooth 5.1 Handsfree and Audio

The dual Bluetooth 5.1 design allows for hands-free calling and high-quality audio streaming.

1. Pairing: Go to the Bluetooth settings on the device, enable Bluetooth, and search for your smartphone. Select your phone from the list and confirm pairing.
2. Hands-free Calls: Once paired, you can make and receive calls directly from the device's screen. Your phone's contacts can be synchronized.
3. Audio Streaming: Play music from your smartphone via Bluetooth. The device can transmit audio to your car's speakers for an enhanced sound experience.

Figure 9: Bluetooth 5.1 handsfree functionality.

Figure 10: Dual Bluetooth design for calls and audio.

5.4 GPS Navigation

With the external GPS module, the device provides accurate location tracking and navigation.

• Ensure the GPS module is properly connected.
• Open a navigation application (e.g., Google Maps) on the device.
• The system will accurately log your vehicle's location, speed, latitude, longitude, and route.

Figure 11: External GPS module in action.

5.5 Mirrorlink

Mirrorlink allows you to project your mobile phone screen onto the device, compatible with both Android and iPhone.

1. Open the Mirrorlink application on the Develuck T321D.
2. Follow the instructions on the screen to connect your smartphone. This typically involves connecting via USB or WiFi and enabling screen mirroring on your phone.

Figure 12: Mirrorlink functionality.

5.6 HD Reversing Video (Optional)

If equipped with the optional rearview camera, the system automatically switches to the reverse image when the car is in reverse gear, providing a clearer and safer view.

• The camera features IP68 waterproof rating, 140° wide angle, night vision, and parking lines.
• The night vision effect provides a full-color high-definition display even in low light conditions.

Figure 13: HD Reversing Video features.

Figure 14: Night Vision Effect of the rearview camera.

5.7 FM Transmission

The device can transmit audio to your car's FM radio, allowing you to hear sound through your car's speakers.

1. Open the FM Transmission application on the device.
2. Turn on the FM transmission feature and select an unused FM frequency.
3. Tune your car's FM radio to the same frequency.

Figure 15: FM Transmission setup.

5.8 HD Video Playback and App Downloads

The device supports HD video playback, allowing you to enjoy your favorite videos and music. You can also download various applications from Google Play, including streaming services like Tiktok, Youtube, and Netflix, thanks to the Android 13 system and 5.8GHz WiFi.

Figure 16: HD Video Playback.

Figure 17: Multi-functional and versatile situation.

5.9 Voice Control

The system supports voice control (Siri & Google Assistant), allowing you to operate various functions using voice commands for a safer driving experience.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the screen and exterior of the device. Avoid using harsh chemicals or abrasive materials.
• Software Updates: Periodically check for system updates in the device settings to ensure optimal performance and access to the latest features.
• Temperature: Avoid exposing the device to extreme temperatures, direct sunlight for prolonged periods, or high humidity.
• Cable Connections: Ensure all cables are securely connected to prevent intermittent issues.

7. Troubleshooting

• Device not powering on: Check the car charger connection and ensure your car's cigarette lighter socket is functioning.
• No sound: Verify the AUX cable connection or FM transmission settings. Ensure Bluetooth audio is correctly paired and selected as the output.
• Touch screen unresponsive: Try restarting the device. If the issue persists, ensure the screen is clean and free from debris.
• GPS signal lost/inaccurate: Ensure the external GPS module is securely connected and has a clear view of the sky. Move to an open area if in a covered location.
• CarPlay/Android Auto not connecting: Ensure Bluetooth and WiFi are enabled on both devices. Try unpairing and re-pairing your smartphone. Check for any software updates for your phone or the Develuck T321D.
• Apps crashing or slow performance: Close unused applications. Clear cache for problematic apps. Ensure sufficient storage space is available.

8. User Tips

• For optimal performance, keep the device's software updated to the latest version.
• Utilize the voice control features to minimize distractions while driving.
• When using navigation, ensure your GPS module has a clear line of sight to satellites for the most accurate positioning.
• To extend the life of your device, avoid leaving it in direct sunlight for extended periods, especially in hot climates.

9. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the manufacturer's official website. Keep your purchase receipt as proof of purchase for any warranty claims.