Thursday, 5 June 2025

MB HU7 Instrument Module Mileage Correction Solution

Yanhua Tech introduces ACDP Module 39, designed to support mileage correction for Mercedes-Benz HU7 instrument modules (A206/A223/A177) equipped with chip models R7F7015923 or R7F7015924. This solution is safe and efficient — no soldering is required, significantly reducing the risk of damage.


Module Functions:

Supports mileage correction for MB HU7 instrument modules.

Compatible with chips: R7F7015923 / R7F7015924.


Supported Vehicle Models:

S(W223)/ C(W206/ S206/ V206/ X206)/ AMG (192/ X290)/ A(W177)/ B(W243 W247)/ CLA (C118/ W118)/ CLE(A236 C236)/ EQA (H243)/ EQB(X243)/ EQE(V294)/ EQS(V297)/ GLA(H247)/ GLB(X247)/ GLC(C254/ X254)/ GLE(V167)/ GLS(X167)/ GLS(W257)/ SL(232)


Supported Instrument Modules:

A206

A177

A223

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Connection Method:

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MB HU7 Instrument Module Emulator Guide

(For use with ACDP Module 39)


The MB HU7 emulator allows you to correct the mileage by simulating the relevant communication signals within the instrument module.

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How to Use:

1. Use the ACDP module 39 function to correct the mileage of the Mercedes-Benz HU7 instrument module.

2. Weld the emulator in the HU7 instrument module.


Emulator welding diagram:

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For more information or to purchase, visit:

www.obd2shop.co.uk

Sales@obd2shop.co.uk

Wednesday, 4 June 2025

Yanhua ACDP R7F701401 Interface Board: Toyota ODO Adjustment Easy

If you're looking for a reliable and risk-free way to perform mileage correction on Toyota R7F701401 encrypted chip vehicles, the Yanhua ACDP TOYOTA-B Interface Board is the perfect tool for the job. Designed to work seamlessly with Mini ACDP 2&Module 35, this interface board ensures a hassle-free experience with no soldering required.

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Features:

✅ Supports R7F701401 Encrypted Chip - Specifically designed for Toyota instrument clusters.

✅ Plug-and-Play - No soldering needed, minimizing the risk of damage.

✅ Wide Compatibility - Works with 3 types of Toyota instruments.

✅ Efficient Mileage Adjustment - Quick and accurate mileage correction.


Supported Instrument Types:

This interface board is compatible with 3 instrument types of Toyota, including but not limited to the locked R7F701401 chip.

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Why Choose This Interface Board?

User-Friendly - No technical expertise required; simply connect and proceed.

Time-Saving - Eliminates the need for complex wiring or chip removal.

Safe & Reliable - Reduces the risk of damaging sensitive components.

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Ideal For:

Automotive technicians

Mileage correction specialists

Toyota repair shops


Upgrade your toolkit with the R7F701401-TOYOTA-B Interface Board and experience a faster, safer, and more efficient way to adjust mileage on Toyota vehicles.


Get yours today and simplify your workflow!


www.obd2shop.co.uk

Monday, 12 May 2025

ACDP Module 38 BDC2-ICP Interface Board Installation and Disassembly

This guide provides step-by-step instructions for installing and disassembling the Yanhua Mini ACDP Module 38 BDC2-ICP interface board.


Installation of the BDC2-ICP Interface Board


1. Unlock the Interface Board

Push the lock on the interface board to the "Unlock" position.


2. Position the Interface Board

Based on the location column of the interface board, determine its corresponding installation area on the BDC2 module.

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3. Align the Board

Align the location column of the interface board with the positioning holes on the BDC2 module.

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4. Secure the Interface Board

Press the interface board downward firmly.

Slide the PCB lock buckle to the "Lock" position to secure the board.

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Disassembly of the BDC2-ICP Interface Board

1. Unlock the Board

Slide the PCB lock buckle to the "Unlock" position to release the locked state.


2. Remove the Interface Board

Place your hand in the CON area and apply an even upward force to remove the interface board.

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Follow the steps carefully to avoid damage to the board or module. For more details, please refer to the video:


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Wednesday, 23 April 2025

Yanhua ACDP BMW Versions 082/083/085 Mileage Reset for BDC

This is a tutorial on how to do a BMW Version 082/083/085 Mileage Reset for BDC with YANHUA Mini ACDP 2 + Module 31 and Module 2.


The operation process is as follows:

1. Use the module 32 modification function to downgrade versions such as 082, 083, and 085 to version 081.

2. Remove the BDC for pre-treatment and mileage reset.

3. Then use the module 2 restore function to upgrade it back to the original version.

In this article, we're taking version 085 as an example.


As shown in the figure, connect the ACDP to the vehicle's OBDII port using an OBD extension cable or a DoIP adapter.

Turn on the car ignition to light up the instrument panel.


Step1. Downgrade Versions

Open Mini ACDP APP.

BMW >> FEM/BDC >> IMMO/Mileage >> BDC OBD(F Chassis) >> Detect vehicle info

Please use the ACDP standard power adapter (voltage+ 12V, current >=2.5A).

Connect ACDP with the vehicle OBDII port!

Please save the vehicle system data.


Check the mileage number and the system version info.

Here's taking 085.011.120 as an example.

Take a screenshot to save the vehicle info for subsequent restoration.

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Restore >> Backup coding data >> OK

Please connect the ACDP device with FEM/BDC system accroding to the diagram in the help document.

Check the vehicle info, and click Continue.

Save coding data.

Backup coding data finished.


Program the FEM/BDC system >> DOIP programming/DCAN programming

If you use a DOIP adapter to connect to the OBD2 interface, click Method 1.

If you use an OBD to connect to the OBD2 interface, click Method 2.


OK >> Continue >> Continue >> Select version 081.010.020 >> Continue

About to start getting data from the server, please keep the network open during the process of getting data!


Will start programming FLASH data.

Please keep the voltage no less than 13.0V during programming.

Programming FLASH data is finished.


Write coding data >> OK >> Continue >> Continue >> Select coding data >> Continue

Write coding data and finish.

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Step2. Remove BDC & Reset Mileage

Dismantle the BDC module from the vehicle.

IMMO/Mileage >> FEM/BDC(F Chassis) >> Reset mileage >> FEM/BDC initial programming process >> Automatic ICP programming

Connect ACDP to BDC according to the diagram in Help.


OK >> OK >> OK

Backup file succeeded.


Preprocessing the FEM/BDC. The whole preprocessing takes 5-20 minutes. Please wait...

If the APP prompts the device to be abnormal or loses connection, please do not do anything and wait patiently for 20 minutes. The device will automatically complete the remaining operations to ensure the module is normal.


Successful function execution.


Reset mileage >> OK

Make sure:

Finish FEM/BDC initial programming process.

OK >> YES

Reset FEM/BDC mileage succeeded.

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Step3. Restore To the Original Version

Restore >> Backup coding data >> OK

Confirm the mileage has been reset to 0.

Continue >> Save coding data

Backup coding data finished.


Program the FEM/BDC system >> Method 2: DCAN programming >> OK >> Continue >> Continue

Since the BDC module version restoration is done on the desktop platform, select Method 2: DCAN programming.


Find the original version and select it >> OK >> Continue

Programming FLASH data is finished.


Write coding data >> OK >> Continue >> Continue >> Select coding data >> Continue

Write coding data and finish.


Process the mileage instrument, after modifying the mileage reading on the instrument, reinstall the BDC and the instrument in the vehicle, and confirm if the mileage has been successfully repaired.

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www.obd2shop.co.uk

Friday, 28 March 2025

Fixing W177 Frame Misalignment with Yanhua ACDP Module 37

Customer Problem: Hi, I have an issue with the W177 frame. It is mikes off and not correct when using Yanhua ACDP Module 37. You'll see from the Pics that it doesn't line up. All line up apart from that one circled.

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Salutation: You only need to purchase the HU6-R7F71403-B board.

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www.obd2shop.co.uk

Wednesday, 26 March 2025

Fix Android Phone USB Connection Failure with ACDP2

If you are experiencing issues connecting your Android phone to the ACDP2 host using a USB cable and the USB prompt pop-up window does not appear, follow the steps below to resolve the issue.


Step-by-Step Solution

1. Connect the ACDP2 Host to Your Android Phone

Connect the ACDP2 host to your phone using a compatible Android USB cable.

Open the ACDP software on your device.


2. Check for the USB Prompt Pop-Up

If the USB prompt pop-up window does not appear, the ACDP host may not be recognized by your phone.

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3. Enable OTG Connection

Go to your phone’s Settings.

In the search bar, type "OTG" and select the OTG connection.

You will see a message: "Automatically turns off if not used for 10 minutes."

Turn on the OTG switch.

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4. Return to ACDP Software

After enabling OTG, switch back to the ACDP software.

The USB prompt pop-up window should now appear.

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5. Confirm the Connection

Click "Close" on the pop-up window.

Then click "OK" to finalize the connection.

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Once these steps are completed, your Android phone should successfully connect to the ACDP2 host.


Article source: http://blog.obd2shop.co.uk/fix-android-phone-usb-connection-failure-with-acdp2/


Thursday, 6 March 2025

Yanhua ACDP BMW G Series ID8 Special Filter for ODO Correction

New arrival!!! Yanhua BMW ID8 Special Filter supports G Series ID8 odometer such as BMW 3/4/5/7/X5/X6/X7/XM. Need to work with Yanhua Mini ACDP 2&YH35XX Programmer + Simulator.

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How to connect BMW ID8 Special Filter?

The filter does not require soldering; you only need to plug in the car Odometer plug and socket. The installation is simple, safe, and reliable.


1. Modify the 35128WT/35160WT simulator with YH35XX Programmer.

2. Soldering the simulator into the instrument module.

3. Insert the ID8 Special Filter into the instrument.


*The operation is the same as the ID7 instrument; no need to open the screen.

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www.obd2shop.co.uk