Ninetom RT-LN-NBT-12-X3/4-NT
Ninetom 12.3-inch Touchscreen Car Stereo User Manual
Model: RT-LN-NBT-12-X3/4-NT
1. Introducció
This manual provides detailed instructions for the Ninetom 12.3-inch Touchscreen Car Stereo, designed to upgrade the in-car entertainment system for compatible BMW X3/X4 F25 F26 models. This unit integrates advanced features such as Apple CarPlay, Android Auto, and MirrorLink, enhancing your driving experience with modern connectivity and navigation capabilities.
2. Compatibilitat
This Ninetom car stereo is specifically designed for:
- BMW X3/X4 Series F25 F26 (2013-2016)
- Vehicles equipped with the Sistema NBT.
Important: Aquesta unitat és no compatible with CIC and CCC systems. Please verify your vehicle's system before purchase. Refer to the image below for visual identification of compatible and incompatible systems.

Figura 2.1: Visual guide for identifying compatible NBT systems and incompatible CIC/CCC systems in BMW vehicles.
3. Característiques clau
The Ninetom 12.3-inch Touchscreen Car Stereo offers a range of features to enhance your driving experience:
- Pantalla tàctil de 12.3 polzades: High-resolution 1920 x 720 display for clear visuals.
- Wireless/Wired Apple CarPlay & Android Auto: Seamless integration with your smartphone for navigation, calls, messages, and music.
- MirrorLink Function: Display your smartphone screen directly on the car stereo.
- Connectivitat Bluetooth: For music streaming and hands-free calling.
- Conserva les funcions originals: Preserves factory radio, amplifier, joystick, reverse camera, and manual gearbox functions.
- One-Button System Switching: Easily switch between the new Linux system and the original car interface.
- DSP integrat: Digital Sound Processor for enhanced audio quality.
- Brillantor de pantalla ajustable: Optimize visibility for various lighting conditions.

Figura 3.1: The Ninetom 12.3-inch display showcasing the Apple CarPlay interface.

Figura 3.2: Illustration of built-in CarPlay, Android Auto, and MirrorLink capabilities.
4. Configuració i instal·lació
Installation of the Ninetom car stereo is designed to be non-destructive, preserving your vehicle's original wiring. It involves removing the original car screen and connecting the provided cables.
4.1. Accessoris inclosos
The package includes all necessary accessories for installation:
- 12.3-inch Upgraded Car Stereo
- Cable d'alimentació
- Cable USB
- Cable AUX
- Mounting Bracket (Note: Back bracket may vary by model)
- Eines d'instal·lació
- Installation Guide (Quick Start Guide)

Figura 4.1: Acabatview of included accessories and display dimensions.
4.2. Installation Process Overview
- Preparació: Assegureu-vos que el vehicle estigui apagat i que la bateria estigui desconnectada abans d'arrencar.
- Elimina la pantalla original: Carefully remove the original car display using the provided tools.
- Connectar els cables: Connect the power, USB, and AUX cables from the new unit to the corresponding ports in the vehicle. Ensure all connections are secure.
- Mount New Screen: Install the Ninetom 12.3-inch display using the provided bracket.
- Funcionalitat de prova: Reconnect the battery and power on the vehicle to test all functions of the new stereo.
For detailed step-by-step instructions, please refer to the included Quick Start Guide or contact customer support.

Figura 4.2: Before and After installation comparison.
5. Instruccions de funcionament
5.1. Canvi entre sistemes
The unit allows for easy switching between the new Linux system interface and the original car's factory system. This can typically be done via a dedicated button or a touch control on the screen.

Figura 5.1: Linux system interface and one-button switching functionality.
5.2. Using Apple CarPlay / Android Auto
Connect your iPhone or Android smartphone via wireless or wired connection. Once connected, the CarPlay or Android Auto interface will appear, allowing access to:
- GPS Navigation (e.g., Apple Maps, Google Maps, Waze)
- Phone Calls and Messaging
- Música i podcasts
- Voice Assistants (Siri, Google Assistant)
Nota: You cannot install new applications directly onto the car stereo screen; it mirrors compatible apps from your smartphone.
5.3. MirrorLink Function
MirrorLink allows you to display your smartphone's screen directly onto the car stereo. Connect your phone via USB or wirelessly (if supported) and activate MirrorLink from the unit's menu. This is useful for apps not natively supported by CarPlay or Android Auto.
5.4. Retaining Original Car Functions
The Ninetom unit is designed to work seamlessly with your BMW's existing features. This includes:
- Ràdio original del cotxe
- AmpFunció lifier
- Original Joystick/iDrive Controller
- Cambra inversa
- Comandaments del volant

Figura 5.2: Original BMW NBT system functions retained by the Ninetom unit.
6. Manteniment
To ensure the longevity and optimal performance of your Ninetom car stereo, follow these maintenance guidelines:
- Neteja de pantalla: Utilitzeu un drap suau i sense pelusa lleugerament dampNetegeu-ho amb aigua o una solució netejadora de pantalles. Eviteu productes químics agressius o materials abrasius.
- Actualitzacions de programari: Periodically check for software updates from Ninetom to ensure the best performance and access to new features.
- Condicions ambientals: Operate the unit within the specified working temperature range (-30°C to +80°C).
- Connexions de cable: Periodically check that all cables are securely connected to prevent intermittent issues.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense energia a la unitat. | Loose power cable connection, blown fuse. | Check power cable connections. Inspect and replace vehicle fuse if necessary. |
| No hi ha so de la unitat. | Volume too low, incorrect audio source selected, AUX cable not connected. | Increase volume. Ensure correct audio input (e.g., AUX) is selected. Verify AUX cable connection. |
| El CarPlay/Android Auto no es connecta. | Incorrect USB cable, phone settings, Bluetooth not paired. | Use a high-quality USB cable. Ensure CarPlay/Android Auto is enabled on your phone. Pair via Bluetooth first for wireless connection. |
| Original car radio sound not working with navigation. | Original radio runs on Linux, which may not simultaneously output navigation audio. | This is a known limitation. Use the new unit's audio output for navigation. |
| La pantalla tàctil no respon. | Temporary software glitch, screen calibration issue. | Restart the unit. If issue persists, contact customer support for calibration or further assistance. |
8. Especificacions
| Característica | Detall |
|---|---|
| Marca | Ninetom |
| Número de model | RT-LN-NBT-12-X3/4-NT |
| Mida de la pantalla | 12.3 polzades |
| Resolució | 1920 x 720 |
| Sistema operatiu | Linux 4.9 System |
| Processador | Sunplus 8368XU with 2GB DDR3 |
| Connectivitat | Bluetooth, Wireless/Wired Apple CarPlay, Wireless/Wired Android Auto, MirrorLink |
| Característiques especials | Spotify support, Touchscreen, Built-in DSP |
| Dispositius compatibles | Smartphone |
| Temperatura de treball | -30 °C ~ +80 °C |
| Dimensions del producte | 39.5 L x 18.4 W x 17.3 H centímetres |
| Pes de l'article | 2.2 quilos |
| Bandes de ràdio compatibles | AM (535-1605 kHz), FM (87.5-108 MHz) |
9. Garantia i Suport
Your Ninetom car stereo comes with a Garantia del fabricant de 12 mesos des de la data de compra. Aquesta garantia cobreix els defectes de materials i de mà d'obra en ús normal.
For technical assistance, installation support, or warranty claims, please contact Ninetom customer service. Our professional support team is available to assist you.
- Atenció al client: Refer to your purchase documentation or the Ninetom official weblloc per obtenir dades de contacte.
- Assistència a la instal·lació: Professional installation support is available.
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