Motherboard Stock low Notice
Due to the global memory shortage following the AI boom, DRAM prices have surged by 200% and NAND prices by 70%. RSNAV is closely monitoring the supply chain and adjusting our production plans accordingly.
As of February 5, 2026, our motherboard stock is severely limited. Please note that while orders placed by January 27, 2026, are secured, all orders received after this date are subject to the following stock availability.
RSNAV S5 Pro/Ultra
AD668H board for B8 8.9, 10.25, 12,3
US version: under 20 pcs
EU version: approx. 100 pcs
AD668HX board for C7, B9, PQ, 8P 10.25" 12.3"
US version: under 25 pcs
EU version: under 58 pcs
9" AD445 Board for C7
US version: under 25 pcs
EU version: under 18 pcs
Important Notice
- Price Adjustments: We are maintaining current pricing for now. However, once this existing stock is exhausted, the cost of the motherboard is expected to rise by at least $100 USD.
- Version Differences: The only difference between US and EU versions is LTE frequency support.
EU: B1, B2, B3, B4, B5, B7, B8, B20, B28, B38, B39, B40, B41
US-NA: B2, B4, B5, B7, B12, B13, B14, B17, B25, B26, B41, B66, B71
- Production Review: We are currently evaluating the long-term sustainability of producing the US LTE frequency version. While no final decision has been made, we are considering the possibility of transitioning toward utilizing EU version boards as our primary standard if component supply constraints persist. We wish to highlight that if this potential change is adopted, it would effectively render LTE connectivity non-functional in the US market due to hardware incompatibility. We will provide a formal update once a conclusion is reached.
- Order Policy: Due to critical stock levels, we reserve the right to cancel orders without prior notice if the specific hardware is no longer available.
- Custom Hardware: As a reminder, all RSNAV S5 Pro/Ultra systems are exclusively customized, manufactured-on-demand hardware available in strictly limited quantities.
New RSNAV S5 Pro/Ultimate new software update is being delayed
Update: February 5, 2026
The upcoming software update for the S5 Pro and Ultra is currently experiencing a slight delay. This update is set to include:
- Z-link update to version 6.x
- New DTS-HD and Dolby Atmos support
- New G-meter application
- System load optimization and comprehensive bug fixes
Current Status
While system optimization and the Z-link 6.x integration have been successfully completed, we have identified a severe echo issue specifically related to Dolby Atmos support on certain hardware batches.
Next Steps
Our technical team is currently focused on resolving this interaction between the new audio features and the specific hardware. We expect to address these issues and finalize the update within the coming week.
We sincerely apologize for the delay and appreciate your patience as we work to ensure a stable and high-quality release.
G-meter V2 download link
Updated 12-06-2025
* 3D performance is upgarded.
* Introduced star field background option
If you want to know what it is and it does, please scroll down further and read the 11-28 letter from our CEO.
Now supporting wide-screen S5 Pro/Ultimate models with even more improved 3D tracking mode with extreme customization.
MCU update is mandatory for this app to work. Otherwise, app won't display correctly.
the installation method is the same as below, but for wide screens, the MCU file is mcuUpdate_AD6680_05.mce.
Zip file with APK and MCU file, rename APK.1 to APK
The zip file link may not work due to G-Drive policy. If that is the case, then you have to download MCU update and APK separately in following links.
G-meter V1 app download link
New feature! 3D tracking mode. Based on your car movement and positioning data, a 3D model car mimics your car movement in a virtual reality plain as seen in sci-fi movies such as TRON. If you toggle the view, G-sensor appears for hard racers.
In version 1, we are releasing it only for 9" C7 devices as the wide screen version(8.9, 10.25, 12.3) has app display cut. Our team is on the work and should be ready soon for them as well.
MCU update is mandatory for this app to work. Otherwise, app won't display correctly.
Place the MCU file(mcuUpdate_AD6680_03.mce) into a USB drive under /update/mcuUpdate/ folder and run MCU update from version information screen.
Copy APK file(must be renamed to APK if there is .1 in the file extension) to a USB drive, and install it on the RSNAV device's file explorer app.
You will need to authorize the file explorer app to install an APK app.
There will be security warning, but it is safe. Click more, and choose 'install anyway'. After that, there will be a prompt asking if Play Protect should scan it or not. Either option doesn't matter except, Don't install it. It will pass the play protect scan as it is no harm.
Run Carinfo app and play with it and give up feedback to info@rsnav.com
Zip file with APK and MCU file, rename APK.1 to APK
The zip file link may not work due to G-Drive policy. If that is the case, then you have to download MCU update and APK separately in following links.
New G-meter apps for RSNAV S5 Pro and Ultimate
2025.11.28
Hello everyone,
This is Daniel Kim from RSNAV.
First, I would like to offer my sincere apologies for the lack of communication over the past several months. I fell quite ill last spring, but I am happy to share that I am recovering well and feeling much better now.
During my recovery, while confined to my bed, I spent my time developing a new application. It is the G-Meter app that I had previously promised you.
This application operates by directly reading the Audi RAW CAN BUS data. As you can see, it displays a comprehensive set of real-time metrics, including: Realtime Warning indicators, Speed, RPM, Gear, Fuel Level, Voltage, Odometer, a 0-100km/h Timer, 0-100km/h average G recorder, G-Meter, Coolant Temperature, Oil Temperature, Intake Air Temperature, Yaw Rate, Dynamic Pitch, Accelerator Pedal position, Battery Charge, and Engine Oil Level.
Since all data is sourced directly from the vehicle's CAN BUS, no additional hardware is required. This ensures an incredibly fast response time—significantly faster than standard OBD II connections.
While the UI is not yet fully polished, I plan to improve it gradually over time. Currently, the app has only been tested on my personal vehicle, a 2012 Audi A7 (C7). While I anticipate it should function correctly on other MLB platform vehicles, I cannot guarantee it just yet.
This started as a personal passion project, and I am offering it as a gift to you, my fellow Audi enthusiasts. To use this app, you will currently need an RSNAV S5 Pro or Ultimate Android unit. Unfortunately, support for the RSNAV Standard model is not available at this time.
Please bear in mind that this is still in the Alpha stage and has only been tested on one vehicle, so unforeseen issues may arise. I warmly welcome your feedback. However, rest assured that this app poses no risk to your vehicle’s driving performance or safety.
I plan to share a demonstration video showing the app running in a real vehicle by tomorrow. Following that, I will release the necessary MCU update and the APK file for experimental testing within the next few days.
I wish peace and well-being to all your homes. I am deeply grateful to my family, friends, and customers for their unwavering support. I also give thanks to God for giving me another chance.
I hope you all have a healthy and happy 2026!
Warm regards,
Daniel Kim
Owner, RSNAV
To Our Valued Customers and Community,
September 8, 2025
To Our Valued Customers and Community,
We want to provide clarity on our production and shipping timelines. Our products are customized and produced in small batches. This production model means that our orders are fulfilled when the factory has capacity between larger orders from other clients. While this can sometimes lead to delays, it is the nature of our specialized process.
Our CEO is currently working on a limited schedule to manage transactions and escalated cases while recovering from a serious health condition he experienced this spring. We are pleased to report that he is making a good recovery, and his reduced workload is a necessary part of managing his health and stress levels.
We appreciate your understanding and continued support, especially during a time of global economic uncertainty and tariff-related challenges. We remain committed to providing you with high-quality products and service.
Sincerely,
The RSNAV Team
Bought RSNAV from Aliexpress cheaper? No You didn't.
Every RSNAV product is custom-designed hardware available exclusively through our official website, RSNAV.com. Our commitment to providing a superior, tailored experience sets us apart from other versions on the market.
Key features exclusive to genuine RSNAV devices include:
- Superior Audio Quality: Our units feature a digital sound circuit with a Texas Instruments Audio DAC and an SPDIF digital output. In contrast, non-RSNAV versions use an analog sound chip with no digital output.
- High-Quality Microphone: Our devices are equipped with a digital microphone, a feature not found on other versions.
- Regional LTE Compatibility: We offer two distinct LTE modem versions—one for the American market and one for the European market—to ensure proper cellular connectivity. Be aware that the Chinese version's LTE modem will not work outside of China.
- Exclusive Software: Our proprietary software is designed to function only on genuine RSNAV units. It cannot be installed on devices from other brands.
RSNAV does not provide customer service for non-RSNAV versions. To ensure you have an authentic product, please look for the genuine RSNAV hologram sticker on the back of the unit.
We are also excited to announce that our S5 units now officially support a wide range of popular streaming services, including Netflix, Prime Video, YouTube TV, and Paramount+.
Thank you for your understanding and for choosing genuine RSNAV products.
Standard System Introduction, installation, post-installation setup videos
Standard system introduction
https://youtu.be/OdcSZwbmYvk
RSNAV Standard system installation video on Audi B8/B8.5 Q5/SQ5 https://youtu.be/coXZjcvipTw
RSNAV Standard system post installation setup instructions
https://youtu.be/6wO_D8Lxuxw
RSNAV S5 Android 13 Systems
RSNAV Standard System
RSNAV Audi Video Interface
Warning: Payment Policy and Device Deactivation
RSNAV.com reserves the right to suspend a device's functionality if full payment is not successfully received. This includes instances where a payment is canceled or declined after the product has shipped, such as a customer initiating a chargeback.
Upon cancellation of a device's registration due to non-payment, the following will occur:
- Android Devices: An "inactivation warning" will appear on the screen of the affected device every 5 minutes.
- Standalone Devices: The device's functionality will become limited until full payment is received and verified.
RSNAV.com will not reactivate any device that has not been fully paid for. There is no method to retain a fully functional RSNAV device without proper and complete payment. We will vigorously pursue all attempts to defraud RSNAV.com.
By purchasing from RSNAV.com, you agree to these terms and conditions. If you do not agree with or understand these terms, do not proceed with a purchase.
Last Revised: November 6, 2022