Unlock SD Connect C4 by PCB Modification

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Unlock SD Connect C4 by PCB Modification

“If your Mercedes-Benz Star diagnosis SD Connect c4 is locked, do not need to buy a new set and just change this chip is ok.” said a Mercedes owner with MB SD C4 diagnostic tool.

Here is the customer solution to unlock MB Star diagnostic tool sdconnect c4 mux.

NOTE: AT RISK TO TRY!

PCB modification procedure:

1- Carefully open the sd connect multiplexer

2- Check whether some part is easy broken

MB SD Connect C4 printed circuit board in a good condition should be:

2016-sd-connect-compact-4-pcb-1

2016-sd-connect-compact-4-pcb-2 2016-sd-connect-compact-4-pcb-3 2016-sd-connect-compact-4-pcb-4 2016-sd-connect-compact-4-pcb-5

 

3- Possible occasion:

Maybe batteries leaked and damaged the PCB.
4- Blow the chip marked with a red circle by a electric hair drier

2016-sd-connect-compact-4-pcb-6

5- Disassemble the chip

6- Write the program to a new chip

7- Install the new chip to the PCB, then assemble PCBs into SD connect c4 mux

8- Start SD c4 mux

9- Connect MB SD C4 multiplexer to the laptop

10- SOLVED! And work like a charm, as a good SD Connect C4 at obd2tool.

If method above cannot help you out please contact OBD2TOOL customer service.

Hope this helps!


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(Best) MB SD Connect C4 V2012.11 for offline programming

The offline programming has been switched off on DAS beginning from OBD2TOOL. So now when you want to program a control unit for whatever reason you will need to go online to after sales platform which of course will require a dealer login and a password and only then you will be allowed to program the control unit. And this will be possible only if your control unit contains the software version older than the software version available. If the software inside the control unit is the already latest one and you still need to program it you will get a message saying that “No newer software was found”. (Soon there will be a solution how to avoid this message).

Here, we will tell you the offline-programming version.
The best version
Permanent version
Free versions

The best version for offline programming—Star diagnostic software 2012.11 for Benz diagnostic tool SD C4&DELL D630 + setting up offline mode in old DAS software

This is the one highly recommend although the version is kind of old.

The package V2012.11 MB Star C4 with DELL D630 laptop and preinstalled software is very convenient for users who do not have DELL D630 laptop or do not want to install software. Besides, you need to buy additional setting up offline mode in old DAS software.
But you need set up WIFI and Lan cable connection by yourself if you want to do online programming. This package also includes the offline programming activation software.

V2015.05 or the latest software for online programming:
NOTE: if you want to do online programming, you need the new software v2015.05 or the latest software. Our v2012.11 only support offline programming. If you want to do both online and offline programming, you are advised to have both v2012.11 software and v2015.05 or the latest software.

How to do offline programming V2012.11 software?

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Original super Mb Star C3 (not limited software version) do offline programming permanently

Super mb star c3 is the most ideal version to do offline programming no matter which software version. But please enable the offline-programming function before use, then you can update it online and to use the newest star software for diagnosis.

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Offline programming for free—2015.05 star diagnostic software

Offline-programming function is available and free for all V2015.07 star diagnostic software incl. star c3, sd connect c4.

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