YANFU 12.1-inch Android Automotive Multimedia Stereo User Manual

1. Introduction

Thank you for purchasing the YANFU 12.1-inch Android Automotive Multimedia Stereo. This manual provides detailed instructions for the proper operation and maintenance of your new head unit. Please read it carefully before use and keep it for future reference.

This device is designed to upgrade the multimedia capabilities of Mercedes-Benz GL and ML models from 2012 to 2015, offering advanced features such as GPS navigation, Android Auto, Apple CarPlay, and a responsive touchscreen interface.

Video: Demonstration of the YANFU 12.1-inch Android Automotive Multimedia Stereo in operation, showcasing various features and interface navigation.

2. Setup and Installation

Before proceeding with installation, ensure your vehicle is compatible with this unit (Mercedes-Benz GL ML 2012-2015). Professional installation is recommended.

2.1 Package Contents

Verify that all components are present:

• 12.1-inch Android Head Unit
• Installation Frame/Trim (specific to Mercedes-Benz ML/GL)
• Power Cables
• GPS Antenna
• 4G Antenna
• USB Cables
• RCA Audio Cable
• Other necessary wiring harnesses and accessories

2.2 Unit Overview and Connections

Familiarize yourself with the rear ports of the head unit:

Image: Rear view of the head unit with labeled ports. Key connections include: Radio Antenna, GPS Antenna, 4G Antenna, Reverse Video Input, Protocol Communication Socket, 6P USB, 4P USB, Reserved Ports, RCA Audio Cable, Connect to Fan, COAXIAL OPTICAL, and Power Outlet.

2.3 Installation Steps (General Guide)

1. Remove Original Unit: Carefully remove the existing car radio and dashboard trim.
2. Connect Wiring: Connect the provided wiring harness to the car's existing wiring. Ensure all connections are secure.
3. Connect Antennas: Attach the GPS antenna, 4G antenna, and radio antenna to their respective ports on the head unit.
4. Connect USB/RCA: Connect any external USB devices or RCA audio/video cables as needed.
5. Test Functionality: Before fully reassembling the dashboard, power on the unit and perform a basic functionality test (e.g., power on, touch screen response, audio output).
6. Secure Unit: Mount the new head unit into the dashboard opening using the provided installation frame.
7. Reassemble Dashboard: Carefully reassemble the dashboard components.

For a visual comparison of the dashboard before and after installation:

Image: Comparison of a Mercedes ML 2012-2015 dashboard before and after the installation of the 12.1-inch multimedia stereo.

3. Operating Instructions

3.1 Main Interface and Application Access

Upon startup, the unit defaults to the main menu page, displaying shortcuts to frequently used functions. You can customize the layout and swipe left/right to switch between screens. Tap any icon to launch the corresponding application.

Image: The main interface of the multimedia stereo, showing various application icons and system information.

Deleting Application Icons:

Press and hold an application icon or widget on the main menu. A delete button will appear. Drag the icon to the delete button and release to remove the shortcut.

3.2 Navigation Function

Tap the navigation icon on the main interface to access the map interface. The unit supports various navigation apps such as Google Maps, Navitel, Waze, iGO, and Sygic.

Image: Display of various navigation applications available on the multimedia stereo, including Google Maps, Navitel, Waze, iGO, and Sygic.

3.3 Bluetooth Functions

Tap the Bluetooth icon on the main interface to enter the Bluetooth menu.

3.3.1 Bluetooth Call Record:

View incoming, outgoing, and missed calls. Records are arranged by dialing time and can be deleted.

3.3.2 Bluetooth Phone:

1. Enable Bluetooth on your mobile phone and the car unit. Set your phone to be "visible to everyone."
2. Search for the car unit's Bluetooth device on your phone and connect. Enter the pairing password (usually 0000).
3. Once connected, you can use the Bluetooth phone function.

3.3.3 Bluetooth Sync Phone Address Book:

1. Ensure your phone and car unit are connected via Bluetooth.
2. Click the download icon in the phone book interface. Your phone will prompt you to allow access to the address book.
3. Wait for the download to complete, then click save.
4. Use the search function to find contacts. Contacts can be deleted using the delete button.

3.3.4 Bluetooth Music:

Play music from your mobile phone through the car's Bluetooth. Control playback (next/previous song) from the unit.

3.3.5 Bluetooth Device Search:

1. Tap the search icon to find nearby Bluetooth devices.
2. Select a device and click "Connect." Enter the matching password.
3. Click "Disconnect" to end a connection or "Clear Device" to remove a device from the list.

3.3.6 Bluetooth Settings:

View and change the car's Bluetooth name and pairing password. Enable automatic answering for incoming calls. A Bluetooth reset button restores factory settings.

Image: Features of the new Bluetooth 5.0 connection, including handsfree call, contact synchronization, call record, and Bluetooth music support.

3.4 Video Playback

Tap the video icon to enter the video playback interface. The player supports various video formats (3gp, mp4, m4v, flv, f4v, mkv, webm, avi) from internal and external storage. It offers a simple interface and supports high-definition playback.

Video List:

View videos by selecting the storage device type. The interface shows a list of videos or video folders.

3.5 Equalizer

Access the equalizer interface to adjust sound settings. You can select preset sound effects or manually fine-tune parameters like EQ, sound field, spatial effects, and sound enhancement.

Image: Built-in DSP processor with 16-band control, allowing for multi-dimensional surround sound and high-definition audio-visual experience.

3.6 Radio Function

Enter the radio interface to access radio functions. You can switch between long and short range, search for stations, save stations (up to 6 per band across 5 bands), and adjust FM sensitivity or RDS settings.

3.7 Steering Wheel Learning

For vehicles with steering wheel buttons, you can customize their functions:

1. Press and hold the button on the steering wheel you wish to program.
2. On the unit, select the function button you want to assign. Release the steering wheel button when a valid number appears below the function button.
3. Repeat for other buttons. Each key can only learn one function.

3.8 Touch Screen Assistant

The floating touch screen assistant provides shortcuts for various operations. You can enable/disable its display, set it to appear automatically on boot, and adjust its size. It can be hidden during navigation or other car-related applications.

3.9 Music Player

Access the music player via its application icon. It supports song lists, folder lists, artist lists, and album lists. The play interface displays song information and control buttons (play/pause, next/previous, fast forward/rewind).

3.10 File Management and Picture Preview

The file manager allows you to view and operate files on the unit's internal and external storage. You can copy, move, and manage files. The picture preview function lets you browse images, set wallpapers, zoom, crop, and rotate pictures.

3.11 Settings

Access the settings menu for various configurations:

• Wireless Settings: Configure Wi-Fi, check data usage, view SIM information, and manage mobile network options (hotspot, flight mode, VPN).
• Device Settings: Adjust screen brightness, wallpaper, sound output effects (LOUD, equalizer), GPS information (Beidou/GPS dual-module display, time synchronization), and manage storage/applications.
• General Settings: Configure basic attributes like "Press any key to start" (turn on unit), "Brake wire for video in motion" (video display controlled by handbrake), "Auto-start Navigation," "OSD Time," "Reversing mute," "Reversing mirror image," and "Backlight brightness control."
• Factory Settings: (Caution: Not recommended for general users) Enter password (123456/3368) to access advanced settings.
• Personal Settings: Manage location information, security features, language and input methods, backup and reset options, and ACC power-off delay time.
• System Settings: Set date and time, view device information (applications, system, software), and check IMEI number.

4. Specifications

For more detailed specifications, please refer to the official product PDF manual: View User Manual (PDF)

5. Maintenance

5.1 General Care

• Keep the screen clean using a soft, lint-free cloth. Avoid abrasive cleaners or solvents.
• Protect the unit from extreme temperatures and direct sunlight for prolonged periods.
• Ensure all connections are secure and free from debris.

5.2 Software Updates

Periodically check for software updates to ensure optimal performance and access to new features. Follow the on-screen prompts or consult the manufacturer's website for update instructions.

6. Troubleshooting (FAQ)

6.1 Bluetooth Connection Issues

Q: The Bluetooth of the mobile phone and the Bluetooth of the car cannot be paired and connected?
A: If the Bluetooth connection fails, try turning off and on your phone's Bluetooth and searching again. If the issue persists, click the reset option in the Bluetooth settings on the car unit. After a few seconds, you should be able to pair and connect.

6.2 No Sound from Bluetooth Music

Q: There is no sound from Bluetooth music?
A: Ensure that the paired mobile phone has its volume output enabled and is not muted.

6.3 Phone Book Download Failure

Q: There is no response when you click to download the phone book?
A: After establishing a Bluetooth connection, when you click "Download" in the phone book, your mobile phone should receive a request to download contacts. Confirm and allow the download request on your phone.

6.4 Bluetooth Name Not Updated

Q: The Bluetooth name is not updated after setting?
A: If the Bluetooth name is not updated immediately after setting, disconnect the Bluetooth connection and then reconnect it.

6.5 Storage Device Not Updating

Q: No data update at the first time when I plug in SD card or USB in the music player?
A: The music player will scan and detect data when a storage device is plugged in. If the data is large, it may take some time (a few seconds to 1 minute) to update. If it still doesn't update, ensure the storage device is properly mounted. Check the file browser for the corresponding storage directory. If no directory is found, re-plug the card or check the hardware connection.

6.6 Garbled Song File Names

Q: Song file name shows garbled code?
A: The song name displayed is not the file name itself. If the song's internal coding method is not a common format or does not comply with the local language, it may result in garbled code display.

7. User Tips

• Optimize Sound: Utilize the built-in DSP processor and 16-band equalizer to fine-tune audio settings for your preferred sound profile. Experiment with different presets (Rock, Pop, Jazz, etc.) or create a custom one.
• Split Screen Multitasking: Take advantage of the split-screen feature to run two applications simultaneously, such as navigation and music playback, for enhanced convenience.
• Voice Control: Use voice commands for navigation, calls, and music to minimize distractions while driving.
• Stay Updated: Regularly check for system updates to ensure you have the latest features and performance improvements.
• Personalize Your Display: Customize the main interface layout and use the touch screen assistant for quick access to frequently used functions.

8. Warranty and Support

This product comes with a 3-year warranty. For any issues or support inquiries, please refer to the official product page or contact the seller directly.

For detailed guides and further information, you can also refer to the comprehensive User Manual (PDF) available at: https://manuals.plus/m/f8a1010205f1c5885d4d48bc3c2ed4e4ebc49643f5772a050bba44b0855fd887