1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your JOYING Android 8.1 Car Head Unit. This device features an 8-inch double DIN LCD touchscreen, powered by Android 8.1, with 4GB RAM and 64GB internal storage. Key functionalities include 4G SIM card support (SIM card not included), Bluetooth, WiFi, Digital Sound Processor (DSP), SPDIF output, Android Auto compatibility, and fast boot capabilities. Please read this manual thoroughly before using the product to ensure proper operation and to prevent damage.
2. What's in the Box
Carefully unpack all items and ensure that all components listed below are present and in good condition. If any items are missing or damaged, please contact JOYING customer support.
This image displays the various components included in the product package, such as wiring harnesses, USB cables, antennas, and the external microphone.
- JOYING Android 8.1 Car Head Unit (Main Unit)
- ISO Harness
- 20-pin Harness
- 2x USB Cables
- 2x 4G Antennas
- External Microphone (11.5ft)
- GPS Antenna (16.4ft)
- User Manual (this document)
3. Dimensions and Connections
Refer to the diagrams below for the physical dimensions of the head unit and the layout of its rear connections. This information is crucial for proper installation and wiring.
This image illustrates the front panel dimensions (209mm width, 127mm height for the 8-inch screen) and the side profile (153mm depth, 100mm height). It also details the rear panel connections including 4G SIM card slot, GPS, Video IN, SUB, SPDIF Digital Audio Output, WiFi, Radio ANT, MIC, OTG USB, USB, L IN, R IN, RL OUT, FR OUT, FL OUT, FUSE, and Joying Port.
Key Connections:
- 4G SIM Card Slot: For inserting a 4G SIM card to enable mobile data connectivity.
- GPS Antenna Port: Connect the provided GPS antenna for navigation functionality.
- Radio ANT: Connect your vehicle's radio antenna.
- USB Ports: For connecting USB devices, including the provided USB cables for external storage or Android Auto/CarPlay.
- MIC: External microphone input for improved call quality.
- Audio Outputs (RL OUT, FR OUT, FL OUT): RCA outputs for connecting to external amplifiers.
- SPDIF Digital Audio Output: For high-quality digital audio connection to compatible amplifiers or sound systems.
- Video IN: For connecting a reverse camera or other video input sources.
- WiFi Antenna: For wireless internet connectivity.
4. Setup and Installation
Installation of the JOYING Car Head Unit requires technical knowledge and should ideally be performed by a qualified professional. Incorrect installation can lead to damage to the unit or your vehicle's electrical system. Always disconnect the vehicle's battery before beginning installation.
4.1 Pre-Installation Checks
- Verify vehicle compatibility with a double DIN head unit.
- Ensure all components listed in "What's in the Box" are present.
- Gather necessary tools (screwdrivers, wire strippers, electrical tape, multimeter).
4.2 Wiring Connections
Use the provided ISO Harness and 20-pin Harness to connect the head unit to your vehicle's wiring. Match the wires according to their functions (e.g., power, ground, speaker outputs, accessory). Consult your vehicle's wiring diagram for specific connections.
- Power (Yellow): Constant 12V power.
- Accessory (Red): Switched 12V power (turns on/off with ignition).
- Ground (Black): Connect to a solid chassis ground point.
- Speaker Wires: Connect to corresponding vehicle speaker wires (e.g., Front Left +, Front Left -).
- Reverse Gear Signal: Connect to the vehicle's reverse light signal for automatic camera display.
- Steering Wheel Control (SWC): Connect to vehicle's SWC wires (if applicable) and configure in settings.
4.3 Antenna Connections
- Connect the GPS Antenna and mount it in a location with a clear view of the sky (e.g., dashboard, under windshield).
- Connect the 4G Antennas and position them for optimal signal reception.
- Connect your vehicle's Radio Antenna.
4.4 Initial Power On and Configuration
- Reconnect the vehicle's battery.
- Turn on the ignition. The unit should power on automatically (Fast Boot feature).
- Follow the on-screen prompts for initial setup, including language, time zone, and network settings.
- Test all functions: radio, Bluetooth, GPS, USB, and steering wheel controls.
5. Operating Instructions
This section details the various features and how to operate your JOYING Car Head Unit.
5.1 Basic Operation
- Power On/Off: The unit typically powers on with the vehicle's ignition. Long press the power button on the front panel for manual power off/on.
- Touchscreen: Navigate the interface by tapping, swiping, and pinching gestures, similar to a smartphone.
- Volume Control: Adjust volume using the on-screen controls or steering wheel controls (if configured).
- Home Screen: Access various applications and widgets from the customizable home screen.
5.2 Built-in 4G Module
The head unit supports a 4G SIM card for direct internet access, allowing you to browse the web, stream media, and use online navigation without tethering to a phone. Note that the SIM card is not included and voice calls are not supported directly through the 4G module.
This image demonstrates the functionality of the built-in 4G module, showing the SIM card slot and multiple web pages (eBay, AliExpress, Amazon, Google) displayed on the head unit's screen, indicating direct internet access.
- Inserting SIM Card: Locate the 4G SIM card slot on the rear of the unit (refer to Dimensions and Connections section). Insert a compatible 4G SIM card.
- Network Settings: Go to "Settings" > "Network & Internet" to configure APN settings if necessary.
- Internet Access: Once connected, you can use pre-installed browsers or download apps from the Play Store for online services.
5.3 Bluetooth Connectivity
The unit features built-in Bluetooth for hands-free calling and audio streaming. An external microphone is included for clear voice communication. The default Bluetooth password is 0000.
This image illustrates the Bluetooth functionality, displaying a phone dialer interface and a music playback screen, indicating support for hands-free calls and audio streaming.
- Pairing: Go to "Settings" > "Connected devices" > "Bluetooth". Enable Bluetooth on your phone and search for the head unit. Select the unit and enter the password "0000" if prompted.
- Hands-Free Calling: Once paired, you can make and receive calls directly from the head unit. The unit supports phonebook synchronization.
- Music Playback: Stream audio from your paired phone to the head unit.
5.4 ZLINK (Android Auto / Apple CarPlay)
ZLINK allows seamless integration with your smartphone, providing access to navigation, music, messages, and voice commands. It supports both wireless Bluetooth and wired USB connections for Apple CarPlay (iOS 10.1-12.2 compatible) and wired USB for Android Auto (Android 7.0-9.0 compatible).
This image displays the ZLINK application interface, showing icons for Phone, Spotify, Maps, Messages, Pandora, Car, WhatsApp, and Play Music, indicating compatibility with both Apple CarPlay and Android Auto.
- Connecting Apple CarPlay: Connect your iPhone via Bluetooth (for wireless) or USB cable (for wired) and launch the ZLINK app on the head unit.
- Connecting Android Auto: Connect your Android phone via USB cable and launch the ZLINK app. Ensure Android Auto is installed on your phone.
- Voice Commands: Use voice assistants (Siri or Google Assistant) for hands-free control.
5.5 Built-in DSP (Digital Sound Processor)
The integrated 16-band Equalizer (EQ) with independent front and rear settings, full Q-factor fine tuning, bass-boost, and high-pass/low-pass filters allows for precise audio customization to optimize your listening experience.
This image illustrates the DSP interface, showcasing a 16-band graphic equalizer with various presets (Standard, User, Rock, Soft, Classic, Pop) and options for Surround, Bass Enhancement, Field, and Bass Filter adjustments.
- Accessing DSP: Navigate to the "DSP" or "Sound Settings" application on the head unit.
- Equalizer: Adjust the 16 frequency bands for front and rear speakers independently.
- Bass Boost: Enhance low-frequency response.
- Filters: Apply high-pass and low-pass filters to speakers and subwoofer output for optimal sound staging.
5.6 Split-screen Functionality
The split-screen feature allows you to run two applications simultaneously on the display, enhancing multitasking. For example, you can use navigation on one side and music playback on the other. Note that some built-in applications may not support split-screen mode.
This image demonstrates the split-screen capability, showing a video player on one side and a navigation map on the other, allowing two applications to be viewed concurrently.
- Activating Split-screen: Open the first application. Then, either long-press the recent apps button or drag an app from the recent apps list to one side of the screen. Select another app for the other side.
- Resizing: Adjust the size of each app window by dragging the divider bar.
5.7 Other Features
- WiFi: Connect to available Wi-Fi networks for internet access. Go to "Settings" > "Network & Internet" > "Wi-Fi".
- GPS Navigation: Utilize pre-installed or downloaded navigation apps with the external GPS antenna for accurate positioning.
- SPDIF Output: Connect to external audio equipment via the SPDIF digital audio output for high-fidelity sound.
- Fast Boot: The unit is designed to boot up quickly, reducing waiting time when starting your vehicle.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your JOYING Car Head Unit.
- Cleaning the Screen: Use a soft, lint-free cloth slightly dampened with water or a screen cleaner. Avoid abrasive materials or harsh chemicals.
- Software Updates: Periodically check for and install software updates provided by JOYING to ensure the latest features and bug fixes. This can usually be found in "Settings" > "About device" > "System updates".
- Temperature: Avoid exposing the unit to extreme temperatures. While designed for automotive use, prolonged exposure to direct sunlight or extreme cold can affect performance.
- Ventilation: Ensure the unit's ventilation openings are not blocked to prevent overheating.
7. Troubleshooting
If you encounter issues with your head unit, refer to the following common problems and solutions before contacting customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | No power connection; Blown fuse; Incorrect wiring. | Check power and ground connections. Inspect vehicle and unit fuses. Verify wiring against vehicle diagram. |
| No sound. | Volume too low; Mute activated; Speaker wires disconnected; Amplifier issues. | Increase volume. Check mute setting. Ensure speaker wires are correctly connected. Check external amplifier if used. |
| Bluetooth not connecting. | Bluetooth off; Incorrect pairing; Device not discoverable. | Ensure Bluetooth is enabled on both devices. Delete previous pairings and re-pair. Make sure the unit is discoverable. |
| GPS signal lost or inaccurate. | GPS antenna not connected; Antenna obstructed; Poor satellite reception. | Check GPS antenna connection. Relocate antenna to a clearer position. Ensure vehicle is in an open area. |
| Touchscreen unresponsive. | Software glitch; Screen damage. | Restart the unit (power cycle). If issue persists, perform a factory reset (data will be lost). If still unresponsive, contact support. |
8. Specifications
Detailed technical specifications for the JOYING Android 8.1 Car Head Unit.
- Brand: JOYING
- Model: Android 8.1 4GB+64GB 8-inch Double Din Car Head Unit
- Operating System: Android 8.1
- RAM: 4GB
- Internal Storage: 64GB
- Screen Size: 8 inches
- Display Type: LCD Touchscreen
- Connectivity Technology: Bluetooth, Cellular (4G SIM), Wi-Fi
- Controller Type: Android (App, Touch)
- Special Features: DAB (Digital Audio Broadcasting), Touchscreen, Built-in DSP, Fast Boot, Split-screen
- Compatible Devices: Smartphone (for Android Auto/Apple CarPlay)
- Connector Type: USB, RCA, SPDIF
- Audio Output Mode: Stereo
- Output Wattage: 180 Watts (Max)
- Supported Internet Services: Maps, Web Browsing, Streaming
- Item Weight: 5.49 pounds (approx. 2.49 kg)
- Package Dimensions: 12.2 x 8.7 x 7.9 inches (approx. 31 x 22 x 20 cm)
- ASIN: B07VXV3L98
- Manufacturer: JOYING
- First Available: August 13, 2019
9. Warranty and Support
JOYING provides a limited warranty for this product against defects in materials and workmanship under normal use. The specific terms and duration of the warranty may vary by region and purchase date. Please retain your proof of purchase for warranty claims.
9.1 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact JOYING customer support through their official website or the retailer where the product was purchased. When contacting support, please have your product model number and purchase details ready.
- Official Website: Refer to the packaging or product documentation for the official JOYING website.
- Email Support: Check the JOYING website for contact email addresses.
- Online Resources: JOYING may offer FAQs, forums, or additional guides on their website.
