1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your new JOYING 12.3'' QLED Android Head Unit. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage. This unit is specifically designed for Honda Civic 2012-2015 Left Hand Drive models.
2. Package Contents
Verify that all items listed below are included in your package:
- Head Unit (12.3" QLED Android Head Unit)
- Frame Kit
- Single Din Cage
- Power Cable (may vary depending on purchase option)
- BT Antenna (1 unit)
- WiFi Antenna (2 units)
- 4G Antenna (2 units)
- USB Cable (2 units)
- User Manual
- GPS Antenna (1 unit)
- External Mic (1 unit)
- AR Cable (1 unit)
- Screen Ribbon Cable (1 unit)
3. Specifications
| Feature | Detail |
|---|---|
| Joying Model | JY-HT902N12 |
| Operating System | Genuine Android 13 |
| Display Size | 12.3 inch |
| Resolution | 1920*720 |
| Processor Type | QCM6490 (Octa-core) |
| RAM | 12GB |
| ROM (Internal Storage) | 256GB |
| Max External Memory | 256G (via USB/Micro SD) |
| Out Power | 4*50W |
| Voltage | 12 V (Working Voltage: 10V-14V) |
| Item Weight | 4.5kg |
| Item Size | 12.3 inch |
| Working Temperature | -20℃-70℃ |
| Fast Boot Time | 2-5 seconds (first boot <20s) |
| Sleep to Wake Time | <1s |
| Standby Current | ≤6mA |
| Bluetooth | Qualcomm 3031 chip Bluetooth 5.1/5.2 |
| USB / Micro SD Slot | 3x USB ports, 1x Micro SD card slot |
| TYPE-C Port | Supports touch-screen convenience screen (extension cable sold separately) |
| Digital Media Format | Mp3, MP4, WMA, JPEG |
| Interface | USB/RCA/coaxial out/optical out |
| Special Features | Built-In Speaker/Microphone, WiFi function, Support steering wheel control, Support Can-Bus, Built-in GPS, Charger, Mobile Phone, MP3 players |
| Certification | CE |
| Material | Metal+ABS |
3.1 Network Specifications
WiFi & 4G Module:
- Supports dual WiFi band connecting: 2.4 & 5G & 6 GHz (802.11a/b/g/n/ac/ax, Wi-Fi 6E, DBS, 2 × 2 MU-MIMO)
- Insert the SIM card for Internet access (does not support phone calls or SMS). Note: The models do not support Russian SIM cards.
Supported Network Frequency Bands:
4G Global Edition (4G; 3G; 2G):
- LTE-TDD: B34/B38/B39/B40/B41
- LTE-FDD: B1/2/3/4/5/7/8/12/13/14/17/18/19/20/25/26/28/66/71
- WCDMA: B1/B2/B4/B5/B6/B8
- GSM: 850/900/1800/1900 MHz
5G in North America:
- 5G SA/NSA: n1/3/5/7/8/20/28/38/40/41/77/78/79
- 5G MIMO (DL): n1/3/7/38/40/41/77/78/79; 2 × 2 MIMO (UL): n38/40/41/77/78/79
- LTE: B1/2/3/4/5/7/8/12/17/18/19/20/26/28/32/34/38/39/40/41/42
- LTE MIMO (DL): B1/3/7/38/40/41/42
- WCDMA: B1/2/4/5/6/8/19
- GSM/EDGE: B2/3/5/8
4. Setup and Installation
4.1 Compatibility Check
Before installation, confirm your car's dashboard type to ensure compatibility and receive the correct wiring harness. This unit is designed for Honda Civic 2012-2015 Left Hand Drive models.
Dashboard Types:
- A: Without screen
- B: Without screen (Premium Audio System)
- C: With DA screen
4.2 Wiring Diagram and Connections
Refer to the following diagram for connecting the head unit to your vehicle's systems. Ensure all connections are secure before powering on the device.
Key Interfaces:
- HDMI Input: Connect external devices like gaming consoles or media players.
- HDMI Output: Sync infotainment screen to rear headrest screens for back-seat viewing.
- USB Type-C: Connect portable screens for dual screen operation. (Note: Type-C extension cable sold separately).
- Antenna Connections: Dedicated ports for GPS, BT, WiFi, and 4G antennas.
- Audio Outputs: RCA outputs for various channels (FL, FR, RL, RR, SUB, CEN).
- AVM360: Interface for 360-degree panoramic camera (camera sold separately, activation fee applies).
The power cable may vary depending on your specific purchase option. Ensure you use the correct power cable provided.
Retained Original Features: The head unit is designed to retain your vehicle's original features, including the OEM Amplifier, Factory Reverse Camera, Factory Subwoofer, and Factory Steering Wheel Control.
5. Operating Instructions
5.1 Initial Power On and Boot Up
Once installed, insert the car key. The unit will start up immediately and enter the user interface within 2-5 seconds. The first boot-up may take approximately 20 seconds. The device supports quick wake-up from sleep mode in less than 1 second.
5.2 User Interface and Navigation
The unit runs on Genuine Android 13, offering a comprehensive interface for navigation, entertainment, and third-party applications.
- Switching Apps: Tap the "---" icon to switch to an app's interface.
- Quick App Switching: Long press to switch between applications.
5.3 Bluetooth Connectivity
The unit features Qualcomm 3031 chip Bluetooth 5.1/5.2 for low power consumption, faster transmission, and stable signal. It supports audio streaming, automatic phone book transfer, and hands-free calls.
- Dual-mode Bluetooth: Supports simultaneous connections to two smartphones or a phone and an OBD diagnostic dongle.
- CarPlay & Android Auto: Supports both wireless and wired connections.
Bluetooth Audio Quality:
Note: aptX/aptX HD Audio is compatible with Android phones only. iPhone defaults to the AAC codec.
5.4 Audio Features and Equalization
The unit features a TDA7850 Amplifier and AKM 7739 DSP for Velvet Sound, along with an AKM 4432 DAC for High-Fidelity Sound.
- Sound Effects: 20 selectable sound effect styles and 48-band EQ.
- Frequency Range: Extended frequency range of 20Hz-40kHz for personalized listening.
- DSP: AKM 7739 DSP (24-bit ADC & 32-bit DAC).
- DAC: AKM 4432 DAC (192kHz PCM Input, 32-bit Processing & Low-Distortion).
- Outputs: 4*Audio Outputs, 1*SUB Output, Fiber Optical Output, SPDIF Coaxial Output.
5.5 Display Modes
The unit supports Light/Dark Mode with manual or automatic switching.
5.6 GPS and Navigation
Integrated Multiband GNSS (GPS, GLONASS, NavIC, BeiDou, Galileo, QZSS) supports GNSS L1 and L5 bands for accurate positioning.
5.7 Camera Integration (Optional)
The unit supports front and rear cameras for enhanced driving safety.
During driving, you can freely switch between the front and rear camera views to observe the driving environment. Note that these cameras are optional accessories and need to be purchased separately.
360 Panoramic Camera: The unit supports a 360-degree panoramic camera via a dedicated interface. The camera itself is not included and requires separate purchase. An additional fee of USD 30 applies for activation of the 360-degree view function.
5.8 OBD2 Integration (Optional)
Connect an OBD2 diagnostic dongle via Bluetooth to retrieve real-time data and trouble codes from your vehicle's computer. (OBD2 dongle sold separately).
6. Maintenance
6.1 Cleaning the Display
Use a soft, lint-free cloth to gently wipe the QLED display. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid abrasive materials or harsh chemicals.
6.2 Software Updates
Periodically check for software updates to ensure optimal performance and access to new features. Updates can typically be found through the system settings or the manufacturer's official website.
6.3 System Reset
If the unit experiences persistent issues, a system reset may resolve them. Refer to the system settings for options to perform a soft or factory reset. A factory reset will erase all user data and settings.
7. Troubleshooting
This section addresses common issues you might encounter with your head unit.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | Incorrect wiring; Blown fuse; Insufficient power supply. | Check power cable connections. Verify vehicle fuse. Ensure proper voltage (10V-14V). |
| No sound output. | Speaker wires disconnected; Volume too low; Audio settings incorrect; OEM amplifier issue. | Check speaker connections. Increase volume. Verify audio output settings. Ensure OEM amplifier is functioning. |
| Bluetooth connection issues. | Device not discoverable; Interference; Incorrect pairing procedure. | Ensure Bluetooth is enabled on both devices. Re-pair the devices. Move away from sources of interference. |
| GPS signal lost or inaccurate. | GPS antenna obstructed or improperly installed; Poor satellite coverage. | Ensure GPS antenna has a clear view of the sky and is securely connected. Move to an open area. |
| Touch screen unresponsive. | Software glitch; Screen damage. | Restart the unit. If issue persists, perform a soft reset. Contact support if hardware damage is suspected. |
8. User Tips
- For optimal performance, regularly check for and install system software updates.
- Utilize the dual-mode Bluetooth feature to connect both your smartphone for calls/audio and an OBD diagnostic dongle simultaneously for comprehensive vehicle monitoring.
- Explore the extensive sound customization options with the 48-band EQ and various sound effect styles to tailor the audio experience to your personal preference.
- Consider purchasing optional accessories like the AR Front/Rear Cameras or a 360 panoramic camera for enhanced driving safety and convenience. Remember that the 360-degree camera requires an additional activation fee.
- Ensure your SIM card is compatible with the supported network frequency bands, as Russian SIM cards are not supported.
9. Warranty and Support
This product comes with a 24-month manufacturer warranty. The warranty covers defects in materials and workmanship under normal use.
Warranty Exclusions: The warranty does not cover damage resulting from:
- Improper installation
- Accident
- Misuse or abuse
- Improper wiring
- Incorrect voltage operation (outside 10V-14V)
- Operation against the instructions in this owner's manual
Repair and Replacement Policy:
- Within one month of purchase: If the product has a problem, a new replacement unit can be provided. Buyers are responsible for return shipping fees.
- After one month, within one year of purchase: Free repair service is available. Buyers are responsible for return shipping fees.
- After one year of purchase: Free repair service is available. Buyers are responsible for two-way shipping fees.
For technical support or warranty claims, please contact JOYING Official Store customer service.
