Resolve different mileage on Yanhua YH35XX software & dashboard?

 Problem: When I use a Yanhua YH35XX programmer to read the EEPROM of the instrument panel, I find that the mileage displayed on the software is different from the mileage displayed on the instrument panel. What could be causing this?

Answer: The discrepancy between the mileage displayed in the software and on the dashboard indicates that the mileage data is located in different places. There’s no need to use an analog chip; you can directly modify the vehicle’s original chip using a Yanhua YH35XX programmer.

The 35128WT chip requires differentiation of data formats; the data characteristics of versions V1 and V2 differ significantly.

The 35128WT chip requires differentiation in data format; the data characteristics of versions V1 and V2 differ significantly. The difference lies in the following: version V1 does not allow modification of mileage and requires the use of the Yanhua simulator, while version V2 allows direct modification of mileage on the original vehicle chip.

Problem: How can I decode and modify this file? Are there any tutorials?

Answer: Yanhua offers a file modification service. After reading the file, it is saved and sent to a technician, specifying the original mileage and the mileage to be modified. The technician will manually modify the file and send it back. Simply write the modified file into the vehicle’s original chip.

Contact us:

Email: sales@OBDexpress.co.uk

WhatsApp: +44 7418609676

Lonsdor ADP-40 Adapter: BMW G/U Chassis & VAG 5C/5D No Solder

 Stop soldering and start earning. The Lonsdor ADP-40 Solder-Free Adapter Kit is the professional solution for reading encrypted data without the risk of hardware damage.

Limited first batch — first come, first served!

The ADP-40 Adapter: Key Features

The new ADP-40 adapter is a powerhouse designed for the most demanding luxury vehicle brands:

• BMW G/U Chassis: Effortless BDC3/BCP encrypted data reading.
• BMW LCD Keys: Full support for encrypted smart key data.
• VAG Group: Specialized reading for VW/Audi 5C and 5D smart keys.
• Porsche: Reliable 5D smart key data reading.
• Compatibility: Plug-and-play with Lonsdor K518 and K518 Pro.

Professional License Upgrades

To unlock these high-end functions, choose the license that fits your shop’s needs. Both licenses include a 160-credit starter pack (~$23 value):

BMW BDC2/BDC3/BCP/LCD License

• Smart Rewards: Earn 10% credits back per use — get 1 free read for every 10 uses.
• Free Upgrades: Previous BDC2/3/BCP license holders are auto-upgraded to include LCD support.
• Pro Perk: Active Annual Subscription users skip the activation fee entirely.

VW 5C/5D & Audi/Porsche 5D License

• Credit System: Use credits for reading/copying OEM key data.
• Easy Top-up: Buy credits through distributors or swap Lonsdor APP points (100:1).
• Efficiency: Active Annual Subscription users bypass activation.

Secure Your Kit Today

Don’t get left behind by encrypted vehicle systems. Whether you need the full kit or specific adapter boards (14 varieties available separately), Lonsdor has you covered.

Boost your shop’s capabilities — order your Lonsdor Solder-Free Kit today!

www.obdexpress.co.uk

How to Clone BMW BDC3 Encrypted Key by Yanhua Mini ACDP2?

 Yanhua Mini ACDP2 now supports keys cloning for BMW BDC2, BDC3, LCD (with encrypted chips), and BCP modules (both with and without UWB) in bench mode. This tutorial uses a BDC3 key as a practical example to illustrate the complete procedure.

Equipment & Software Preparation:

1.Required Hardware:

• Yanhua Mini ACDP or ACDP2 unit
• ACDP Module 38 License (Activated)
• Yanhua BMW BDC2/BDC3 Encrypted Key Copying Adapter
• Original key for programming

2.Software Prerequisites:

Ensure all software is updated to the latest compatible versions to enable this functionality.

• ACDP PC Software: Version 1.0.64 or higher
• ACDP2 PC Software: Version 2.0.8 or higher
• Android App: Version 3.0.141 or higher
• iOS App: Version 3.6.4 or higher

Procedure:

Step 1: Prepare BMW BDC3 Key

Gently open BDC3 key fob casing.

Move the latch on the interface board to the UNLOCK position.

Align the interface board’s guide pins with the matching holes on the key’s internal PCB.

Press the board firmly into place.

Secure the assembly by sliding the PCB locking latch to the LOCK position.

Step 2: Hardware Connection

Establish a proper connection between Yanhua ACDP2 unit, BDC3 interface board (with the original key attached), and the adapter cable.

Set the DIP switch on the adapter to the BDC3 position.

Step 3: Access the Cloning Function

Launch Yanhua ACDP application on your computer or mobile device.

Navigate through the menu: BMW > FEM/BDC > IMMO/Mileage > BDC02/BDC03/BCP/LCD key (encrypted chip) ICP Copy Key.

Select the specific option: BDC03-key (square main chip/encrypted).

Step 4: Extract and Backup Original Key Data

Begin the process to read the data from the original key.

Once reading is complete, carefully review the displayed key details (such as VIN).

It is critical to back up this data. Take a screenshot and note the backup file’s location, creation date/time, and VIN. The saved file must have a .bin extension.

Step 5: Program the Replacement Key

After the read operation, select the target key type. Choose Write BDC03 key (encrypted).

Remove the original key. Attach the new, blank BDC3 key to ACDP BMW BDC3 interface board and reconnect it to the unit.

Warning: Avoid reconnecting the original working key during this step to prevent accidental data loss, which would permanently disable it.

Confirm the new key’s information and also create a backup of its initial data.

Step 6: Write Data and Finalize

Upload the previously saved original key data (the .bin file).

Verify that the uploaded data correctly corresponds to the original key.

Proceed to write this data onto the new BDC3 key.

A "Write key successfully" message will confirm completion.

Mini ACDP2 automatically stores the information for the newly cloned key.

www.obdexpress.co.uk

Topdon Moto Series Comparison: Topscan vs. ArtiDiag vs. UltraDiag

 Choosing between the Topscan Moto, ArtiDiag Moto, and UltraDiag Moto depends on your specific technical needs and the variety of bikes you service. While all three support full system diagnosis and bi-directional control, they differ significantly in hardware, brand coverage, and specialized maintenance capabilities.

Quick Comparison Table

• Topscan Moto: Best Value Bluetooth Scanner for DIYers

The Topscan Moto is a smartphone-based Bluetooth adapter designed for high portability. It offers full system scanning and bi-directional tests for 7 major brands. As the most cost-effective wireless solution in the lineup, it is the ideal solution for individual riders who need professional-level diagnostics without the bulk of a dedicated tablet.

• ArtiDiag Moto: The Dedicated Mid-Range Maintenance Tablet

The ArtiDiag Moto features a 5-inch Android 11 tablet with a stable wired connection. It expands coverage to 15 brands and includes over 35 essential service functions such as ABS bleeding, throttle matching, and oil resets. This model is best for enthusiasts or small shops requiring integrated battery power (3350 mAh) for mobile repairs.

• UltraDiag Moto: The Comprehensive Flagship for Full-Service Shops

The UltraDiag Moto is built for high-volume workshops, supporting over 80 brands and featuring 40+ special functions. It includes a 10,000 mAh battery for all-day use and a wireless VCI for flexible operation. With 28 included cables, it offers the most extensive hardware kit for handling complex tasks like ECU coding and deep system calibrations.

Technical Recommendation: Which One Should You Buy?

Scenario A: "I only work on my own bike."

Choose the Topscan Moto. It provides essential bi-directional tests and oil reset capabilities needed to maintain your personal ride at an affordable price point.

Scenario B: "I run a small shop focusing on popular brands."

The ArtiDiag Moto is your best bet. It offers 35+ specialized maintenance functions required for daily service tasks across the most common 15 motorcycle brands.

Scenario C: "I need a tool that can do everything for any bike."

Invest in the UltraDiag Moto. Its 80+ brand coverage and 10,000 mAh battery ensure you are never turned away by an obscure brand or a dead battery during a long diagnostic session.

Final Verdict: All three tools offer one year of free updates and Full System Diagnosis. Your choice ultimately depends on the variety of brands you service and the specific maintenance resets your workflow requires.

Get Your Professional Moto Tools Today

Ready to upgrade your garage or workshop? Explore the full range of TOPDON motorcycle diagnostic tools and secure the best pricing at www.obdexpress.co.uk

Xhorse Key Tool Plus VW MQB49 5C CLK Line not Connected Solution

 One customer reported that when he tried to add a 2023 VW MQB49 5C key using VVDI Key Tool Plus, the device could not read the original key data, and appeared the error message "CLK line not connected." All soldering was correct, the error also occurred with solder‑free adapter.

Solution:

1.Inspect all wiring connections thoroughly — wire colors can vary. Always verify by matching the actual labels on the wires themselves.

2.Pay special attention to the CLK line.

The CLK signal connects to Pin 24 on the chip.

3.Check and restore the chip connection if needed:

• Examine the chip pins under a microscope.
• Carefully polish any cracked or visibly damaged pins.

4.Ensure the CLK connection is physically stable:

• Resolder the wire securely, or
• If using a 5C/5D solder‑free adapter, press a needle firmly against the CLK pin to maintain consistent contact throughout the procedure.

Once the CLK connection is properly established, the Xhorse Key Tool Plus will successfully read the original key data.

www.obdexpress.co.uk

KEYDIY KD-X4 with FGB08 PCB Board Add VAG MQB 5D key

 KEYDIY released the specialized Keydiy FGB08 PCB Key Board. Designed for compatibility with KD-X4 key programmer, this tool enables precise programming support for Volkswagen and Audi ZA & FGA platforms.

Key Features:

• Equipped with built-in 5D basic programs for Volkswagen and Audi — featuring the original two-chip design (non-UWB).
• Ready-to-use functionality: No program generation is required for 5D vehicle matching, and ID modification is supported.
• Comprehensive ZA and FGA program generation capabilities.

(Please note: Once generated, 5D programming functions are temporarily unavailable.)

Usage Note:

Before key matching, the two buttons on Keydiy FGB08 key may not respond — this is normal operation.

Upon pressing the first button, the indicator light will illuminate.

Quick Guide: Generating and Learning an FGB08 Key

Open the KD App and go to:

IMMO Programming → VW → 5C/5D Immobilizer System → Start execution.

Choose "Read the original car key and generate a dealer key."

After reading the original key data, click "Select service number".

When prompted by KD-X4, select "KD-FGB Type" as the key type.

Choose the appropriate frequency.

Insert FGB08 key (with housing) into KEYDIY KD-X4 induction coil area.

Once "FGB08 remote generated successfully" appears, proceed to learn the key in the vehicle.

For the in-vehicle key learning process, please refer to Step 3 in the related tutorial to finalize the setup.

www.obdexpress.co.uk

DIAGXT T80 User Manual: Waveform Analysis & Sensor Testing

 The DIAGXT T80 is a professional-grade automotive oscilloscope designed for precision vehicle diagnostics. This guide provides a concise overview of its specialized features, button operations, and touch gestures to help you master engine timing and signal analysis.

Specialized Automotive Features

Unlike standard oscilloscopes, the T80 includes two dedicated functions for vehicle repair: Analyse and Option.

Waveform Analysis (Analyse)

The T80 features a built-in library of standard waveforms from over 90% of vehicle manufacturers.

• How it works: After capturing a signal, click Analyse to select the corresponding manufacturer and engine model.
• Comparison: The system displays the standard factory data alongside your live signal on the same screen for instant comparison.

One-Touch Test Options (Option)

This menu simplifies the setup process for common automotive components.

• Automatic Presets: Selecting a component from this menu automatically configures the time and voltage scales — no manual adjustment required. For example, when testing a Fuel Injector, the T80 automatically sets the ideal time base to capture the full pulse width.

• Supported Components: Includes Crankshaft/Camshaft sensors (CKP), Throttle Position, Intake Temperature, Oxygen sensors, Fuel Injectors, Battery voltage, and Ignition coils.

Controls and Navigation

Physical Button Operations

The device’s physical buttons mirror the on-screen functions for flexible operation.

ButtonFunctionDirection KeysUsed to zoom the waveform in/out (Up/Down) or shift it (Left/Right).DefaultInstantly restores all parameters to calibrated factory initials to fix display errors.OK / TriggerConfirms selections and manages signal triggering.

Touch Gestures

The T80 supports intuitive smartphone-style gestures for waveform manipulation:

• Vertical Stretch/Pinch: Adjusts the voltage scale ($V/div$) to make the signal taller or shorter.
• Horizontal Stretch/Pinch: Adjusts the time base ($mS/div$) to expand or compress the waveform view.

Waveform Management (Waveform Viewer)

The T80 serves as a personal diagnostic knowledge base by organizing data into two categories:

• Factory Data: Access standard engine timing waveforms from major brands like Renault, Cummins, Hino, and Foton.
• User Data (Self Sav): View and manage waveforms you have previously saved during your own diagnostic sessions.

Path: WavePreview > Cars Oscilloscope > Original Factory Data Wave

Read also

http://blog.obdexpress.co.uk/2025/12/30/diagxt-t80-oscilloscope-manual-how-to-connect-setup/

Ready to Upgrade Your Vehicle Diagnostics?

Don’t let complex engine timing issues slow you down. Get the DIAGXT T80 Universal Oscilloscope today and streamline your repair process with professional-grade waveform analysis.

www.obdexpress.co.uk — Your trusted source for premium automotive diagnostic tools.