Xhorse VVDI MB BGA BE PCB 4 buttons 315MHz – 433MHz XNBZ01EN

🔐 VVDI BE Key Pro – Improved Version

Next-Generation Smart Key Solution for Mercedes-Benz

🚀 Key Features:

• Enhanced Compatibility – Works with more Mercedes-Benz models and EIS systems.

• New Robust Design – Stronger structure and better user experience.

• High Stability & Reliability – Designed for professional and long-term use.

• Adjustable Frequency – Switch between 315 MHz and 433.92 MHz via VVDI MB Tool or onboard SMD resistor.

🔧 Technical Improvements over Previous Versions:

1. Sync Fixes: Solves synchronization issues with W164/W639 EIS data.

2. Ignition Reliability: No more ignition failures on repeated attempts.

3. Remote Trunk Functionality: Fully working trunk release.

4. RF Signal Fix: Now sends signals correctly upon both press and release.

5. Rolling Code Update: Algorithm improved for accurate rolling hash behavior.

6. Pre-Roll Feature Added: Enhances key communication efficiency.

7. Car-Grade Quartz Crystal: Better IR stability and reduced failure rate.

8. Boosted IR Output: Stronger signal when pressing buttons.

9. Dual Frequency Setting Options:

   • Use VVDI MB Tool to change frequency (priority method).

   • Or manually via 1K SMD resistor:

     • Solder on = 315MHz

     • Remove = 433.92MHz

🛠 Note: Once the frequency is set using VVDI MB Tool, the SMD resistor method will no longer take effect unless erased by VVDI MB Tool first.

🧰 Assembly Instructions (with Mercedes-Benz 3-Button Shell):

1. Insert PCB – Place the VVDI BE Key Pro Improved Version board into the smart key shell.

2. Close Bottom Case – Snap the bottom shell securely into place.

3. Add Battery & Top Cover – Insert the battery and cover the top.

4. Install Side Metal Strips – Slide the metal pieces on both sides after the rear metal part is attached.

5. Rear Button Assembly – Install the back button frame securely.

6. Insert Small Key & Start Button – Complete the build by placing the emergency key and ignition button.

🧩 Disassembly Tip: Always reverse the steps above to safely disassemble the key without damaging parts.

📦 Package Includes:

• 1x VVDI BE Key Pro Improved Version PCB (electronics only)

• (Shell not included unless specified)