Xhorse Multi Prog read VW EDC17C46 ECU in Boot

 EXPERIENCE with EDC17C46, Xhorse Multi Prog, tuning files & BOOT recovery.

Tested a few tuning files (Stage 1 + EGR/DPF OFF) on a VW Tiguan Bosch EDC17C46 ECU.
To avoid any risk to the original unit, he intentionally cloned the original ECU just for testing, using VVDI2 for IMMO and MultiProg for EEPROM and FLASH read/write.
Here’s how it went:
Cloning worked perfectly – ECU booted with no issues.
Reading/writing via BENCH mode with MultiProg worked fine at first.
But when I tried flashing a tuned file, writing stopped at 34–37%.
Tried a professional file from Autotuner – exact same issue (stuck at same %).
Finally, he restored the ECU via BOOT mode (Tricore BSL) – flashed the original, and ECU came back to life.

Conclusion:
VVDI2 + MultiProg is a great combo for cloning (IMMO + PFlash)
Files from tuning platforms like Autotuner may not be compatible with MultiProg when flashing via BENCH.
If flashing stops at the same %, it’s very likely a file structure issue, not your tool.
BOOT mode with MultiProg saved the day – full recovery worked.

VW Passat B8 EDC17C74 ECU IMMO OFF with Xhorse Multi Prog

Here we will show how to read, write and disable the immobilizer (IMMO off) on the VW Passat B8 Bosch EDC17C74 ECU using the Xhorse Multi Prog programmer.

Quick search EDC17C74 ECU. Check wiring diagram and connect ECU with multi prog via ECU adapter.

Read int flash and save data.

Read INT eeprom and save.

Go to Tool tab- Turn off the IMMO function.

Load int eeprom we have backed up.

Hit Turn off the IMMO.

Generate IMMO OFF file successfully. Save immo off file.

You can also compare the original eeprom and immo off eeprom data.

Write the IMMO OFF data back to the eeprom with multi prog.

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Xhorse Multi Prog Read VAG Continental Simos 11.1 ECU

 Xhorse Multi Prog read VAG Continental Simos 11.1 ECU in boot mode successfully.

In multi prog software, select VAG Continental Simos 11.1 ECU.

Check boot mode wiring diagram.

Connect ECU with mcu adapter.

Read INT flash and save.

Read INT eeprom and save.

Xhorse Multi Prog Read Skoda Fabia Simos PCR 2.1 on Bench

 How to read Skoda Fabia Simos PCR 2.1 ECU with Xhorse Multi Prog programmer on bench mode.

Reading the Simos PCR 2.1 ECU

Step 1: Selecting the ECU

• Navigate to the ECU section in the software and search for Skoda Fabia.

• Select the Simos PCR 2.1 (a Continental ECU) from the list.

Step 2: Pinout Connections

• Refer to the pinout diagram provided in the software.

• Use the included ECU adapter and circular connectors to link the Multiprog to the ECU.

• Ensure all connections are secure before proceeding.

Step 3: Read Internal Flash Data

• Click “Read” to begin the Flash reading process.

• The tool communicates with the ECU, displaying progress in real-time.

• The internal flash read takes approximately 5 minutes and 18 seconds.

• Save flash data.

Step 4: Read EEPROM Data

• The external EEROM read is faster at 43 seconds.
• Save the eeprom data.

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How to Use and Program Xhorse Digital Smart Key XSBTK0EN

 Say goodbye to fumbling for keys! The Xhorse Bluetooth Digital Smart Key turns your phone into a digital car key and smart diagnostic tool. Offering keyless entry, touchless locking, and remote start. No network? No problem! Plus, it’s super easy to install via OBD. Monitor your vehicle’s status and control it all from the SmartKey Box app(available on iOS & Android).

In this article, we’ll introduce how to start and use XSBTK0EN Smart Key, including full installation and activation. Upgrade your ride’s security and convenience today!

Step 1. Key Programming

NOTE: For vehicle security, this product requires the use of Xhorse professional equipment during the initial installation.

If you’re an automotive locksmith, make sure you have a battery and a pressing tool ready – tweezers are highly recommended for this process, and any Xhorse generation matching device.

If you’re an individual car owner, the first-time installation will require assistance from a professional automotive locksmith or repair shop to complete the process.

Here’s taking VVDI Key Tool Plus for demonstration.

• To start, carefully press and disassemble the device. Inside, you’ll find a built-in key.
• Be sure to install the battery correctly, paying close attention to the positive and negative terminals(with the correct polarity).
• Once the battery is installed, you can proceed to program it with the vehicle. As you would with a regular key.

It’s that simple! Now let’s dive into the operation steps using a BYD vehicle.

• Remote Program

Insert the Bluetooth Key Remote Module with the battery installed.

Remote Program >> BYD >> Han ID46/4A 433.92 >> Generate

Burn success.

• Detect Chip And Frequency

After generating, check the chip and frequency.

If successfully identified, proceed to the next step.

If the module is not recognized, it indicates that it is in a disabled state.

In this case, insert it back into the OBD port, pair it with the phone’s Bluetooth and use the phone to unlock the car once to activate.

• Immo Programming

Immo programming >> BYD >> 2021-(new) >> Smart key programming >> Start programming >> Key programming

Key number: 2

User the new smart key(Bluetooth Key Remote Module) and hold it close to the induction coil.

Programmed successfully.

• Test Functionality

Next, you can test the remote module.

Make sure it has the battery installed during the testing process.

If the test is successful, you’re all set!

Step 2. Bind The Device

Download and install the SmartKey Box app.

Note:

Programming completed, battery must be removed before using it.

Insert the device into the car’s OBD port, open the app and connect the device.

Then, pair the device with your phone through learning mode.

Step 3. Write OBD Diagnostic Program(Optional)

Enter “OBD diagnosis”, select the corresponding vehicle model and write the OBD diagnostic program to the device.

Note:

If your vehicle model is not currently listed in the supported models, it will not affect the functionality of your phone’s digital key. You simply won’t be able to access real-time vehicle and fault information. We are constanttly working to expand support and will provide updates as they become available.

Once you’ve completed these steps, the device is good to go!

www.vvdishop.com