1. Product Overview
This manual provides detailed instructions for the Uckazy 12.3-inch Car Stereo, designed to upgrade the multimedia system in compatible BMW 5 Series F10 F11 vehicles manufactured between 2013 and 2016 with the NBT System. This device integrates advanced features such as wireless Apple Carplay, Android Auto, and a high-definition touch screen while retaining original car functionalities.

Image: Compatible Models & Year. This image illustrates the compatibility of the car stereo with BMW 5 Series F10 F11 (2013-2016) NBT System, showing the 6-pin LVDS Port for NBT and distinguishing it from the 4-pin CIC System.
Key Features:
- Plug and Play Installation: Designed for BMW 5 Series F10 F11 NBT 520i 525i 528i (2013-2016) with Android Auto compatibility. Please confirm your car system is NBT before purchase.
- Ultra Narrow 12.3-inch HD Display: Features a 1920*720 IN-CELL screen with full lamination technology, reducing reflection by 75% for a clearer, more transparent display.
- Dual System Integration: Seamlessly switch between the Linux system and the original car system. Retains original car radio, amplifier, steering wheel controls, mouse knob, vehicle data display, and original reverse camera.
- Connectivity: Supports wireless (wired) Apple Carplay, wireless (wired) Android Auto, wireless Mirrorlink for iOS and Android phones, Bluetooth, and Wi-Fi.
- Enhanced Audio: Built-in DSP with 16 EQ segments for superior sound customization.
- AHD 720P Reverse Camera: Includes a camera with built-in reverse driving trajectory, pure glass lens, 100% IP6 waterproof rating, night vision, and a 25Hz image refresh rate.
2. What's in the Box
The product package includes the following components:
- Plug and play power Cable/Frame
- Ultra narrow 12.3" in-cell display screen
- USB/AUX/RCA Cable
- Reverse trajectory camera AHD 720P
- Installation tools and touch pen

Image: Box Contents. This image displays the main components included in the package: the 12.3-inch screen, USB cable, AUX cable, power cable, installation tools, touch pen, and the reverse camera.
3. Setup & Installation
General Installation Steps:
For a detailed visual guide on the installation process, please refer to the following videos:
Video: NBT-15.8' ultra narrow BMW carplay installation process. This video provides a comprehensive guide to installing the Uckazy car stereo in a BMW NBT system.
Video: How to install. This video demonstrates the step-by-step installation of the car stereo unit.
Wiring and Fiber Optic Connection:
Carefully follow the wiring diagram and ensure all connections are secure.

Image: Wire Definition and Linking. This diagram shows the wire definitions and how to link the car machine system according to the wire colors and functions (A: 360-DET, B: ACC-OUT, C: Rear-Camera-PWR, D: GND).
If your original car system uses fiber optic cables, you will need to transfer them to the new harness:
Video: No sound - How to transfer fiber optic cables. This video demonstrates how to transfer fiber optic cables from the original car CD to the Linux system harness to resolve potential no-sound issues.

Image: USB Connection for Carplay/Android Auto. This image shows that USB1 is for data linking (Carplay/Android Auto) and USB2 is for read storage. Ensure Carplay/Android Auto is connected via USB1.
4. Operating Instructions
Dual System Switching:
The unit supports one-click switching between the Linux system and the original BMW car system.

Image: One-Click Switching Between Dual Systems. This image illustrates the seamless transition between the original car CCC system and the new Linux system.
Wireless Carplay and Android Auto:
Connect your smartphone wirelessly for Apple Carplay or Android Auto functionality.
Video: Product Display Operating System. This video demonstrates the operating system and its features, including Carplay and Android Auto.

Image: Support Wireless Carplay Android Auto. This image shows the interface for wireless Carplay and Android Auto, allowing access to various applications.
Automatic Light Sensitivity (Day/Night Mode):
The screen automatically adjusts brightness based on your car's original headlights.

Image: Day and Night Mode. This image demonstrates the automatic light sensitivity feature, adjusting the display for optimal visibility during day and night driving conditions.
Reverse Camera Features:
The included AHD 720P reverse camera provides clear visuals with trajectory lines and night vision.

Image: Automatic Reverse Trajectory Guide Line. This image highlights the automatic reverse trajectory and night vision capabilities of the AHD 720P camera.
5. Troubleshooting
No Sound Issue:
If you experience no sound from the car stereo, follow these steps:
- Ensure the original car's Bluetooth is disconnected from your phone.
- In the stereo's settings, turn off the "Use Car's BT Channel" feature.
- In the car's settings, select the "Auto Switch to AUX" feature off.
- Verify the AUX harness is correctly connected.
- Check and reconnect the fiber optic cables if applicable.
Video: How to fix the no sound issue? This video provides a step-by-step guide to troubleshoot and resolve common no-sound problems with the car stereo.
OEM Camera Settings:
To ensure proper display of the original car's camera, adjust the settings as follows:

Image: How to Set the OEM Resolution and Cameras. This image shows the menu options for setting the OEM screen resolution and selecting the correct camera type (Original or Aftermarket) in the reversing settings.
Automatic/Manual AUX Setting:
Configure the AUX input for audio playback from the new system.

Image: Automatic/Manual AUX Setting. This image illustrates how to set the auto switch to AUX feature, allowing selection between Harman Head Unit or Alpine Head Unit, and the manual method for AUX activation.
6. Specifications
| Feature | Detail |
|---|---|
| Package Dimensions | 15.24 x 7.17 x 6.85 inches |
| Item Weight | 4.02 pounds |
| Item Model Number | F10NBT-LIN |
| Brand | Uckazy |
| Connectivity Technology | Bluetooth |
| Controller Type | iPhone App |
| Special Feature | Touchscreen |
| Compatible Devices | Smartphone |
| Connector Type | Stereo Audio |
| Audio Output Mode | Stereo |
| Control Method | Touch |
| Wireless Communication Technology | Bluetooth |
7. Warranty & Support
For any installation issues, sound problems, Carplay/Android Auto malfunctions, or if the original car UI does not display correctly, please contact the seller directly for technical support. The seller, Uckzay Factory Outlet, is committed to providing quality service and assistance.

Image: Technical Support. This image provides information on how to contact the seller, Uckzay Factory Outlet, for technical assistance regarding installation or product issues.
The product is fulfilled by Amazon and offers a 30-day refund/replacement policy. For further inquiries, please use the 'Ask a question' feature on the seller's Amazon store page.