Xhorse Multi Prog Renault Master BCM N4 D70F3632 Pinout

 PINOUT BCM N4 RENAULT MASTER 2020.

MCU RENESAS V850 D70F3632

Pinout to Xhorse Multi Prog.

Here’s pinout for 3632 reading with multi prog.

If get a chip configuration failed error. Chryseal feency does not match,
Change VCC to 4.7V and try again.

Xhorse Multi Prog Firmware Update Server Internal Error Solution

 Problem:

Failed to update Xhorse Multi Prog firmware. Try 3 different internet connections but no luck.
It failed to obtain the file download path. Server internal error.

Possible solutions:

1. Restart the Prog software.Try again.
2. Try to re-install the software.
3. Force firmware update and try again.

Hold the Reset button on the main unit before powering on, and hold it for 5 seconds after powering on. Try to force firmware upgrade.

User feedback:

SOLVED: HARD reset button 5sec, after that update successfully done.

Xhorse Multi Prog Fiat 6JF Chip Power Config Failed Solution

 Problem:

Xhorse Multi Prog failed to read Lancia Ypsilon Merelli 6JF ECU on bench mode.
It says chip power configuration modified failed.
Any solution?

Solution:

The multi prog device comes with a 15V power supply in default, but the ECU requires a 12V connection.

Please use a 12V power supply according to the instructions.

www.vvdishop.com

Read Porsche BCM by VVDI Prog Without Cutting Wires

 Traditionally, when working with newer Porsche immobilizer systems, technicians need to remove the BCM (Body Control Module) and read CPU data directly. Using tools like Xhorse VVDI PROG to extract Porsche BCM data (2M25J/5M48H/ 1N35H) requires not only component removal but also cutting a wire near the crystal oscillator.

Risks of Wire-Cutting:

• PCB Damage: Excessive force during cutting may scratch the lower-layer circuit board, permanently damaging the BCM.
• Poor Solder Recovery: Many technicians lack soldering expertise, leading to:
• Short Circuits: Improper wire reconnection causes grounding issues.
• BCM Failure Symptoms: Relays in the BCM may flicker continuously, and the vehicle becomes unresponsive.
• High Failure Rate: Less experienced technicians face significantly higher risks.

Solution:

To minimize risks, an alternative method is proposed.

Component Removal Instructions for Porsche BCM (Body Control Module)

Front-Side Component Removal:

The following components on the front side of the PCB must be removed:

• Diode

Critical Note: Orientation must be correctly identified and maintained. Incorrect placement will cause failure.

• 0-ohm resistor
• Crystal oscillator

Back-Side Capacitor Removal:

After front-side removal, capacitors on the PCB’s back side must also be detached.

Location varies by CPU model:

2M25J

1N35H

5M48H

This way we don’t need to cut the wires.

 

Xhorse also has Porsche BCM solder free adapter which is safer than two soldering method.

Xhorse VVDI Prog Read ChangAn MT22.1 ECU

 How to read and write ChangAn MT22.1 ECU with Xhorse VVDI Prog programmer?

1. Cut the engine computer board, find the wiring diagram, and then use a multimeter to point out the pins to facilitate soldering.

2.  After soldering the wires, open the VVDIProg software.

Select 2 Microcontroller- Motorola MC9S12 series- MC9S12XET256 encrypted.

3. Hit Read Chip ID and identify ID first.

4. Click on Unlock if the chip has a password.

5. Then click on Read data and read the D-FLASH and PLASHF data.

6. Write modified data to the ECU.

Images attached:

Xhorse VVDI Key Tool Max vs Keydiy KD-MAX Comparison

 What is the difference between Xhorse VVDI Key Tool Max and Keydiy KD-MAX?

Both are popular remote generation tools used by locksmiths and automotive professionals.

 

Comparison Table: Xhorse VVDI Key Tool Max vs. Keydiy KD-X2

Feature	Xhorse VVDI Key Tool Max	Keydiy KD-MAX
Image
Screen/Display/Battery	5.0 inch touch screen. 1280*720 resolution. Battery 3375mAh	5.0 inch LCD touch screen. 1280*720 resolution. Battery 3375mAh
Operation	Standalone operation on device; supports wireless control via phone app	Standalone operation on device; supports wireless control via phone app
Remote Generation	Supports generating universal remotes, garage remotes, and smart keys (e.g., Jeep Compass, Renegade)	Supports generating remotes, including some not supported by Xhorse (e.g., Alfa, Geely, Jaguar, VW)
Remote Copy/Clone	Yes	Yes
Transponder Clone	Supports cloning ID46, ID48, 4D, and more; requires tokens for ID48 96-bit cloning (€8 each)	Supports cloning ID46, 4D, ID48; ID48 96-bit cloning is free and faster (~minutes vs. >1 hour for Xhorse)
Special Chip Generation	Yes, supports superchips for wide vehicle coverage	Yes, supports ID46, 4D; limited compared to Xhorse superchips
Chip Simulator	No	Yes, supports ID46, 4D
Remote Simulator	Yes, unique feature for simulating remotes	Yes, can simulate remotes via tool and Android app
Write Key via Dump	Yes	No
Acquisition Test (FSK/ASK EEPROM Frequency)	Yes, for remote issue analysis	No
Frequency Test	Yes, detects immobilizer/remote frequencies	Yes, fast and reliable frequency testing
Immobilizer (IMMO) Programming	Requires separate Mini OBD tool for IMMO functions	Requires separate KD-MATE programmer
ID/IC Copy	Yes	Yes
Unlock Key	Yes, supports wider coverage than Lonsdor, including Toyota/Lexus smart keys	Yes, wider coverage than Autel KM100 for some brands (e.g., Alfa, Jaguar, VW)
Toyota Smart Key Support	Yes, supports unlocking and cloning Toyota/Lexus smart keys	Yes, supports generating some Toyota remotes; weaker than Xhorse for smart keys
Ignition Coil Signal Detection	Yes	Yes
AutoVIN	No	No
IR Signal Detection	No	No
Key Charge	Yes	Yes
PCF7935 Chip Cloning	No	Yes
Vehicle Coverage	Strong for smart keys (e.g., Jeep, BMW); broader coverage for newer remotes	Strong for specific brands (e.g., Alfa, Geely, Jaguar, VW); some cloud remote options
Software Updates	Free lifetime updates	Free lifetime updates
Build Quality	Higher-quality remotes and superchips; well-organized database	Decent quality, but some issues with older remote renewing (e.g., Kia/Hyundai)
Additional Features	Supports OBD programming with Key Tool Max Pro; battery leakage/voltage detection	Simulates proxy keys via app; faster ID48 cloning
User Feedback	Preferred for ease of use, iPhone app compatibility, and superchip versatility	Reliable but app is clunky; some remotes not supported by Xhorse

 

Key Differences and Analysis1.Hardware and Operation:

• Xhorse Key Tool Max: Features a touchscreen for standalone operation. The Xhorse app supports wireless control, especially with iPhones, and is noted for being user-friendly.
• Keydiy KD-MAX: also standalone device with touch screen.

 

2. Remote and Chip Programming:

• Xhorse Key Tool Max: Excels in generating and cloning a wide range of remotes, including smart keys for vehicles like Jeep Compass and Renegade, which KD-MAX doesn’t support yet. It also supports superchips for broader vehicle coverage and unique features like remote simulation and FSK/ASK EEPROM frequency collection for troubleshooting.

• Keydiy KD-MAX: Offers free and faster ID48 96-bit cloning (minutes vs. over an hour for Xhorse, which requires tokens at €8 each). It supports some remotes not available on Xhorse (e.g., Alfa, Jaguar, VW) and can clone PCF7935 chips, which Xhorse cannot. However, its smart key support is weaker.

3. Immobilizer (IMMO) Support:

• Xhorse Key Tool Max: Requires a separate Mini OBD tool for IMMO programming, limiting its standalone IMMO capabilities. The Key Tool Max Pro version adds built-in OBD programming for advanced BMW, Toyota, Ford, and GM procedures.

• Keydiy KD-MAX: Also requires a separate KD-MATE IMMO programmer, making it less versatile for IMMO tasks compared to tools like Autel KM100.

4. Vehicle Coverage:

• Xhorse Key Tool Max: Stronger for smart keys and newer remotes, with a well-organized database and broader coverage for models like BMW and Jeep. Its superchips enhance compatibility across a wide range of vehicles.

• Keydiy KD-MAX: Covers specific brands better (e.g., Alfa, Geely, Jaguar, VW) and offers cloud remote options, but it lags in smart key support and has issues with older Kia/Hyundai remotes.

5. Unique Features:

• Xhorse Key Tool Max: Offers remote simulation, write key via dump, and acquisition test functions, which are exclusive to this device among the compared tools. The Key Tool Max Pro adds OBD diagnostics and battery testing.

• Keydiy KD-MAX: Includes a remote simulation feature via its Android app and supports PCF7935 chip cloning, which Xhorse lacks. 

6. Build Quality and Support:

• Xhorse Key Tool Max: Praised for higher-quality remotes and superchips, with a user-friendly app and strong database organization. It’s seen as overtaking Keydiy in coverage and innovation.

• Keydiy KD-X2: Reliable but criticized for a clunky app and unresolved issues with older remotes (e.g., Kia/Hyundai). Its development is stable but focuses on new products rather than fixing bugs.

Recommendations

• Choose Xhorse VVDI Key Tool Max if:
  • You prioritize standalone operation with a touchscreen and wireless app control.
  • You need strong smart key support (e.g., Jeep, BMW, Toyota) and superchip versatility.
  • Unique features like remote simulation, FSK/ASK frequency analysis, or OBD programming (with Key Tool Max Pro) are important.
  • You value a well-organized database and high-quality remotes.
• Choose Keydiy KD-X2 if:
  • You work with specific brands like Alfa, Jaguar, or VW, where KD-MAX has better coverage.
  • You need PCF7935 chip cloning or cloud remote options.

General Advice: Both tools have strengths and weaknesses, and no single device covers all scenarios. Many locksmiths recommend owning both to maximize vehicle coverage and functionality, as each supports remotes the other may not. If IMMO programming is a priority, consider pairing either with a dedicated IMMO tool like Autel KM100 or Xhorse Mini OBD Tool.