1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your new 12.8-inch Linux System Car Radio. Designed specifically for Mercedes Benz E Class W207 and W212 models with NTG 5.0, NTG 4.5, or NTG 4.0 systems, this unit enhances your driving experience with advanced features like Hicar, Wireless Carplay, and Android Auto. Please read this manual thoroughly before using the device to ensure proper functionality and safety.
2. Safety Information
Your safety is paramount. Please observe the following guidelines:
- Driving Safety: It is advisable not to watch videos or operate the machine while driving. Adjust the volume to an optimum level before driving.
- Operation During Driving: If you encounter difficulty operating the machine, stop the car safely before attempting to use it.
- Children's Safety: Keep the machine out of reach of children to prevent injury or damage.
- GPS Navigation: Always adhere to traffic rules when using GPS navigation.
- Restricted Areas: Do not operate the machine in restricted areas such as petrol stations, wine refineries, or areas with strong electromagnetic obstruction.
- Installation and Repair: Do not install, maintain, or repair the machine yourself with the power on. Installation and repair should only be performed by personnel with professional training and experience in electronic devices and automotive parts.
- Display Screen Care: Avoid installing or storing the machine, especially the LED display screen, directly under sunlight or near hazardous substances. During installation, ensure no direct contact with the air-conditioner's ventilation duct, as this can damage the machine, the car, or cause injury.
- Screen Protection: Do not use sharp objects to scratch or press the display screen vigorously. Gently touch the LCD screen to prevent scratches or dust.
- Environmental Conditions: Do not expose the machine to humid weather or direct contact with liquids to prevent fire or electrical hazards.
- Media Compatibility: The machine supports only one 12mm CD at a time. Do not insert 8mm CDs or other objects into the machine.
3. Product Features
This car radio system offers a comprehensive upgrade to your vehicle's infotainment, combining high-end design with powerful performance.
- Operating System: Linux 6.0+ for fast response and smooth operation.
- Display: 12.8-inch Ultra-Thin Rounded Large Screen with 2400x900 resolution and 1080P High-Definition Output.
- Processor: Allwinner T113 chip.
- Connectivity: Wireless Carplay, Hicar, and Android Auto for seamless mobile integration.
- Bluetooth: Built-in Bluetooth 5.0 module for calls and music streaming.
- Media Playback: Supports USB music and video playback, compatible with multiple video formats.
- Navigation: Accurate map display with real-time traffic status and route planning (after screen mirroring).
- Original Car Function Retention: Retains original car sound quality and vehicle functions, including steering wheel control, mouse/knob control, and compatibility with the original car reversing camera.
- High Definition Video Playback: Delicate image, no color difference, no eye damage, lossless sound quality.
4. Basic Operation
4.1 Power On / Off
- When ACC is connected, press the power button on the front panel to switch on the machine.
- To switch off, turn off the engine and unplug the car key.
4.2 Volume Adjustment
Press the volume buttons (VOL+/VOL-) on the front panel to adjust the volume. Some models may have a dedicated volume control button.
4.3 Mute Control
Press the left volume button to display the volume bar on the screen. Press the media volume icon to MUTE.
4.4 Backlight Control
Adjust the backlight intensity via the 'Display Setting' menu under 'Car Settings'.
4.5 Camera
The screen automatically switches to the rear view when the car is in reverse gear.
4.6 Playback Source Selection
On the front panel, press 'Application' to view options like Radio, Music, Video, USB play, TV (optional), or AVIN mode. On the homepage, touch the APP icon to enter the application interface. Slide left or right to switch between different home pages.
4.7 Playback Mode and Position Memory
When the system reboots, it will resume to the last active mode. For radio, it will resume the last radio channel. For music or video, it will resume playing the last song or video.
5. Settings Configuration
Touch the 'Settings' icon 
on the front panel to enter the Settings interface. Select the desired option to configure. Move the options bar up and down to find specific settings.
5.1 Network & Internet
5.1.1 Wi-Fi Connection
Go to 'Settings' > 'Wi-Fi' and ensure Wi-Fi is switched on. Search for your desired Wi-Fi hotspot, enter the password, and touch 'Connect'. You can also change language type, input, and keyboard settings here.
5.1.2 More
Settings for personal hotspot and VPN are available.
5.2 Car Infotainment Settings
5.2.1 General Settings
- Sleep Mode: Toggle ON/OFF.
- Assistive Touch: Toggle ON/OFF. This feature provides 7 commonly used options on top of the screen for easy navigation.
- Reverse Volume Suppression: Adjusts the volume when the car is in reverse. Options include None, Weak, Medium, and Strong. 'None' means no change, 'Strong' means maximum lowering.
- Boot Logo: Touch to set the boot logo. Enter password (5678) to access the boot menu.
- Reset All Settings: Touch 'Restore Factory Setting' and confirm. The system will restart and revert to factory defaults, removing all custom settings.
5.2.2 Display Setting
Adjust the display brightness for daytime and nighttime. Options for 'Daytime Backlight Set' and 'Nighttime Backlight Set' are available, along with an 'Auto Mode'.
5.2.3 Volume Option
Adjust volume levels for respective system components.
5.2.4 Sound Effect
Enter the sound effect interface by touching 'Sound Effect'.
- Balance Setting: Use the four arrows to adjust speaker volume balance. The black dot at the center indicates consistent volume. Touch the restore icon to reset to default.
- Loudness Setting: Slide left or right to adjust loudness. Higher loudness increases low frequency values. Adjust reasonably to avoid signal loss.
5.2.5 Video Option
- Video in Motion: Slide the button to enable or disable video playback while the car is in motion. For safety, it is recommended to enable this option (disabling video in motion).
- Reversing Warning Line: Enable this option if your car's camera does not have a built-in warning line to display distance during reverse.
5.2.6 Navigation Setting
- Navigation Application Option: Insert a pre-installed navigation application to pair with the navigation button. The system will display all installed applications for you to choose from.
- Navi Mixed: Slide left or right to adjust the navigation mixed volume.
5.2.7 Bluetooth Setting
- Auto Connect: Enable for the machine to automatically search and connect to the last connected device.
- Auto Answer: Enable for the machine to automatically answer incoming calls via Bluetooth.
- Name of Device: Displays the Bluetooth name of the machine.
5.2.8 Maneuver Control (SWC)
To set features for steering wheel control buttons:
- Press the desired control button on your steering wheel.
- Touch the corresponding feature on the touchscreen.
- The control button will turn blue upon successful setting.
- Repeat for all control buttons.
- To delete all settings, select 'CLEARALL'.
5.2.9 Version Information
View system version details under 'About Device'.
6. Applications
6.1 Navigation
The GPS satellite navigation system provides precise positioning and fast calculation for efficient travel. The navigation map offers extensive information and route planning.
- Navigation Map Data: Copy map data to the internal SD card. Ensure sufficient storage space; delete unnecessary data via ES File Explorer if needed.
- APK Navigation Application Installation: Install the APK Navigation Application and ensure the navigation map is correctly installed.
- Navigation Activation: After successful installation, an icon will appear on the homepage. Touch it to launch. Alternatively, link the navigation button to the application via 'Car Setting' > 'Navigation Setting' > 'Navigation Application Option'.
- Navigation Application Operation: Refer to the specific navigation application's manual for detailed operation.
6.2 Video Player
Access the video player from the main interface. It supports internal storage, USB drives, and various formats (ape, flac, etc.).
- Screen Playback Ratio: Adjust using the dedicated icon.
- Loop Playback: Enable/disable loop playback.
- Video Control: Use icons to switch between videos, play, or pause.
- Collection/File List: Access video collections and file lists.
- Folders and Listing: Refresh video listings by touching the video icon followed by the refresh button. Use the search button to find specific video folders.
- Video Display: View 'Favorite videos' and 'History play'.
6.3 Music Player
The machine supports MP3 cover display. If a song includes cover data, it will be shown on the display.
- Repeat and Shuffle: Toggle shuffling of songs. Switch repeat modes (repeat current song, repeat all songs).
- Volume/Sound: Adjust volume and sound settings.
- Collection/File List: Access music collections and file lists.
- Folders and Listing: Refresh music listings. Use the search button to find specific music folders.
- Audio Display: View 'Favorite audios' and 'History play'.
6.4 Bluetooth
The hands-free Bluetooth function allows safe calling while driving.
- Pairing: To activate hands-free, pair your mobile phone. Turn on Bluetooth on your phone, search for the device (e.g., BT6091), and enter the PIN (0000). A 'CONNECTED' sign will appear.
- Reconnecting: If previously paired, touch the connect icon to reconnect. Touch the disconnect icon to end the connection.
- Making Phone Calls: Dial directly on the screen or use the dial pad. Use the backspace icon to correct numbers. Press the call icon to dial or the hang-up icon to end a call.
- During Conversation: Touch the speaker icon to switch between private mode and loud speaker.
- Syncing Contacts: The machine supports syncing contacts from your phone. Touch the download icon to sync. Synced contacts will appear during calls. The contact book supports name search by first alphabet.
- Call History: View outgoing, incoming, and missed calls. You can call back or delete entries from history.
- Bluetooth Music: Play music from your mobile phone through the car's speakers. Supports 'Previous', 'Next', 'Pause', and 'Play' controls.
Note: Due to Bluetooth compatibility, some phone models may not be fully supported. Contact customer service if you experience connection issues.
7. Display Screen Instructions
7.1 Notes
- Do not expose the display screen directly under sunlight or heat for prolonged periods to prevent damage.
- Do not expose the display screen directly under sunlight when not in use.
- The display screen should be used within the operating temperature range of -10℃ to +50℃ and stored within -20℃ to +80℃.
- The LCD screen is a full frontal display. Avoid pressing it vigorously. Gently touch the screen to prevent scratches or dust.
7.2 About LCD
Small black or bright dots may appear on the LCD screen; this is a characteristic of LCD technology and not a defect. In cold areas, the screen may appear dimmer initially but will adjust to normal brightness shortly. Direct sunlight exposure may make the screen difficult to see due to reflection.
7.3 Maintaining the LCD Screen
- Turn off the power before cleaning.
- Wipe the screen with a soft fabric to prevent scratches.
- Do not use wet towels, benzene, or chemical cleaners.
8. Installation
8.1 GPS Antenna Installation Guide
It is recommended to install the GPS antenna on the dashboard or rear shelf. The antenna should be placed on a level surface facing the sky to minimize radio wave blockage. Tempered glass or tint may weaken the signal, so installing the antenna outside the vehicle is recommended.
- Surface Preparation: Before affixing, clean the designated surface with a suitable cleaner.
- Antenna Placement: Remove the backing from the tape and firmly press the GPS antenna into place.
- Cable Routing: Remove the side cover, route the cable through the storage box until it reaches the control panel of the machine. Secure the cable with a cable tie.
- Connection: Connect the GPS antenna's plug to the machine.
Important Notes:
- Ensure the system power is off when connecting the GPS antenna.
- Do not shorten or extend the GPS cable, as this can cause short circuits or damage.
- Avoid interfering with the GPS antenna with the steering wheel or gear lever, as this can be dangerous.
8.2 Compatibility
This unit is compatible with specific Mercedes Benz models and NTG systems. Please refer to the compatibility table below to ensure your vehicle is supported.
9. Troubleshooting Guide
If you encounter any issues, refer to the table below for quick solutions. If problems persist, contact customer service. Do not dismantle the machine without professional advice.
| Issue | Cause | Action (Reference) |
|---|---|---|
| Unable to power on | Car key not inserted or ACC not turned on | Insert car key and turn on ACC |
| Power cord not connected | Connect power cord correctly | |
| Fuse is damaged | Replace with similar fuse | |
| Unresponsive touch screen | System is multi-tasking (e.g., navigation) | Wait a moment. If problem persists, contact customer service. |
| No rear view image | No reverse camera installed | Install reverse camera and plug into CCD socket |
| Reverse camera type does not match | Replace reverse camera | |
| Rear view appears during reverse even when system is not booted. Power button is null. | This is part of the safety feature where the rear view function is preset for safety priority. | Power on to boot the system. After resuming from reverse position to normal. |
| No GPS signal | GPS antenna is not connected | Connect GPS antenna correctly |
| Car may be at GPS signal blind spot | Drive for a distance to check GPS signal. If problem persists, contact customer service. | |
| Positioning and navigation failed upon power on | Blind spot of navigation map. Remote areas or routes not covered in map. | Contact customer service to update map |
| Unable to locate destination | Incorrect spelling of destination | Ensure correct spelling. Try possible names. If still unable, destination may not be updated in database. |
| Navigation routes are far | Navigation system sets route based on built-in rules, distance, road grade, traffic rules, etc. | The system calculates the most efficient route based on various factors. |
| Blank on the map | Due to scale setting or loss of GPS signal | Zoom in/out to adjust map display. If persists, reset destination or select new landmark. |
10. Specifications
| Feature | Specification |
|---|---|
| Operating System | Linux 6.0+ |
| CPU | Allwinner T113 chip |
| Screen Size | 12.8 inches |
| Resolution | 2400 x 900 (2K Ultra Clear) |
| Video Output | 1080P High-Definition |
| Connectivity | Wireless Carplay, Hicar, Android Auto |
| Bluetooth | Bluetooth 5.0 module |
| Input Support | AV (Line Audio / CVBS Audio) |
| Compatibility | Mercedes Benz E Class W207 W212 (NTG 5.0, NTG 4.5, NTG 4.0) |
| Package Weight | 3.0 kg |
| Package Dimensions | 37 cm (Length) x 30 cm (Width) x 35 cm (Height) |
| Origin | Mainland China |
11. User Tips
- Initial Setup: Ensure all cables are securely connected before powering on the unit to avoid installation issues.
- Screen Mirroring: For optimal navigation and media experience, utilize the screen mirroring function for your mobile device.
- Bluetooth Connectivity: If experiencing issues with Bluetooth, try restarting both the car radio and your mobile device. Ensure your phone's Bluetooth is discoverable during pairing.
- Software Updates: Check for any available software updates to ensure optimal performance and access to the latest features.
12. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller directly. A user manual in PDF format is available for detailed guidance. You can view the PDF manual here.
