How To Use VVDI MB TOOL OBD Clip?

 We may find that it is seldom used the VVDI MB Tool OBD Clip while programming Mercedes. In general, we more often use the OBD cable connector instead. So when and how to use the OBD clip?

 

When programming Benz 204/207 with directional lock on car, it’s not able to read data with VVDI MB Tool by OBD directly. That’s because data will be interfered due to OBD connection. That’s why locksmiths always remove directional lock on bench to read immo data or match simulator.

 

Can we program Benz 204/207 without wiring harness on car?

The answer is yes.

 

By reason of filtration and interference from other car modules, it’s failed to read immo data by OBD. But we can bypass the interference through connecting OBD communication line on device to directional lock straightway. That’s what the VVDI MB OBD Clip can do: connect to directional lock.

 

How to use VVDI MB OBD Clip?

1. Break open the communication line of directional lock;
2. Clamp to communication line.

Note:

* DO NOT disconnect plugs of directional lock & ELV Emulator.

* Clamp to the corresponding line for red marked pin.

* Need to break wire skin.

It’s recommended to use the way in case emergency without any EIS/ELV Test Lines.

www.vvdishop.com

 

How to Fix VVDI MB Can not find W639 erase password?

 Problem:

It tells “Can not find erase password!” when I am using Xhorse VVDI MB Tool to start and load W639 EIS data. What is the problem? Please help me!

Solution:

1).

By W639 EIS ESL test cable

Hooking up MB power adapter and W639 EIS ESL test cable 

Connect VVDI MB with mb power adapter, W639 EIS, EIS test cable and IR reader as picture shown below:

Run VVDI MB software, start data acquisition

Save EIS data and upload to calculate password

The password calculation procedure takes 9 minutes around.

 

 

 

2).

By using combination tool, i.e Extreme MB tool 

Step 1. Start up Extreme MB tool software, click “Sonder Hash Online Calculator”.

Step 2. Copy special key “12B281A5893FFE9E” on VVDI MB Tool and paste it to “Sonder Hash”, click “Calculate”.

Step 3. Copy dealer password generated, paste it to VVDI MB BGA Tool “Erase Pass”, select “Allow user” option meanwhile.

Click “Save EIS data”, select the original EIS file to replace.

Save >> Yes >> OK >> Save

Step 4. Completed.

Select IR mode in EIS function, now the EIS can be renewed.

Problem was solved!

 

 

 

3).

By backup MB programmers, CGDI MB, Autel IM608 etc

For example: calculating W639 password by CGDI MB and AC adapter fast cable, reading pass in less than 9 minutes

www.vvdishop.com

http://blog.vvdishop.com/vvdi-mb-tool-can-not-find-w639-erase-password/

Program Mercedes S500 2008 W221 All Keys Lost with VVDI MB

How-to program Mercedes Benz W500 Year 2008 chassis W221 key with VVDI MB BGA Tool when all keys lost.

Step 1: Read EIS Data

Choose chassis W221 and read EIS data

Reading data success.

Save EIS data
Save HC05 format file

Step 2: Calculate password
Select Password Calculation

Select IR mode and chassis W221
Press Data Acquisition

Connect VVDI OBD cable to OBD on bench before continue
Connect IR adapter to VVDI MB before press OK

Take out and insert again if already inserted

Wait until calculate password success

Step 3: Prepare key file

Go to Prepare Key File->Load EIS file

load EIS file

Select key format v51 and press Prepare Key File

save key file

Step 4: Write Key

Go to Read Write Key

Identify key and Load Key file

load a key file

choose key file format v51 and press Write

VVDI MB Tool write key success

Test EIS status/Working Key->Test working key

Insert working key to VVDI MB IR reader before press OK
Insert working key to EIS
Insert working key to VVDI-MB IR reader

Test working key okay.

Start vehicle with the new key.

Done.

www.vvdishop.com

VVDI MB No USB Connection Device Not Found Error Solution

Issues with VVDI MB Tool: No USB Connection – Device Not Found

Hi there Folks…..
Hope all doing well here.
Well my MB tool after couple years of good use and many smiles suddenly is giving me some sadness.
All was working fine. Suddenly now when I plug it in then VVDI MB Tool software says ” CANNOT FIND DEVICE”.
I tried another USB cable, another USB port, Another Laptop with Win7. Nothing nothing nothing.
Doesn’t even show a port in Device manager. I then tried FTDI prog to see if that detects it and nothing……..

When I connect my VVDi2 and VVDi prog with the same cables and ports etc and all those working fine.

My MB Tool only green light comes on and that’s it. I opened the casing and checked it and nothing seems physically damaged or blown. I resoldered the USB connector and tested the continuity with a tester and all show fine.
Seems the USB interface chip is dead.
I really feel sad as this tool is in daily use and I really rely on it every day. I would hate to go back to my old Ak500 or anything else.

(It’s got nothing to do with software update as the Upgrade kit also doesn’t detect it)

Answer on how to do FTDI check:

HI,
Detecting fault isn’t an easy task if you are not skilled with electronics (low level let’s call it), important thing for ftdi to work is to have supply 5v usually taken from usb (pin 20 vcc pin 19 reset), usb data lines D+D- to FTDI pins also should be check these go to pin 15 & 16, then RxD and TxD (pin1 & pin5) these should go to main MCU.
Check FTDI designs and see how VVDI has done the configuration.
Check connections with multi meter (could be usb connector faulty), some designs have 22ohm on data lines D+ & D- and also a 1K resistor for reset FTDI during insertion on PC so device is detected properly.
Hope this helps a bit concerning FTDI check, since you said Mprog (ftprog) doesn’t detect the FTDI properly…, worst case could be faulty FDTI due some static discharge.
Check Attached schematic VCC,GND, RESET TxD & RxD are important for you (this is a example of using FTDI in some circuit).
regards

Continue checking the fault:

Ok So at least I got some smiles back.
This machine does not have FTDI chip. I don’t know how it communicates… Maybe doesn’t need FTDI.
I measured voltages coming in from USB and on the closest component to the USB port I found that I had one pin with 5V and others nothing.
I opened up my VVDI2 and VVDI prog to compare and tested them and found that on the same component next to USB port I had one pin with 5v and other with 3v.
So I took the component from my VVDI prog as it’s the cheaper of the 2 to experiment with and moved it to my VVDI MB  and connected it up. Voila it works again. It appears in device manager and also software reads and everything working fine.

What component is it you may ask?
4 Pin SMD marked WR1. With some google searching, I find that it is PRTR5V0U2XESD Protection. Seems this is specifically designed to protect your device from any Surge from the USB port. This component acts like a fuse which will blow but prevent further damage caused by static / USB surge when connecting and disconnecting.
Cost of component is around $0.3 each or even less depends where you shop.

 

Job is well done: 
You have done well, STM32F4xx if I’m not wrong VVDI use and this MCU has USB witch can run as Virtual COM Port Host (CDC Host), USB HID etc.
For test purpose only when you had noticed the fault even with removed ESD protection the device should be detected properly, but mounting a new esd protection is highly recommended.

Thanks to @obeids & @ficho (DK Veteran).

www.vvdishop.com