Solved! MB SD C4 Initialization of Diagnosis Multiplexer Failed

Customer Problem: When i connected SD Connect C4 with my computer, it showed white 00 connection status at the bottom right corner. A message prompted “Initialization of diagnosis multiplexer failed.” Do i need to initialize the device?

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Cardiagtool.co.uk engineer solution:

The prompt indicates that you need to update MB SD C4 firmware, not initialization.

Here is the firmware update guide:

Step 1: Please prepare all the tools below:

Note: If your tool is MB SD C4 PLUS (Item No. SP100-E), you don’t need to install battery again, because the batteries have been installed in the device before delivery.

1). SDconnect C4 multiplexer which need to input the batteries

2). 6 units Ni-MH rechargeable batteries (size: AA, Voltage:1.2 V, Capacity: 1700mA above)

3).1 unit 108M WIFI card

4).Plum screwdriver, specification: T-20

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Step 2: Take out the rubber

1).Use the T20 Plum screwdriver to take out the screws as below.

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2).Take out the rubber as below

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Note: No.1 is Batteries space, No.2 is WIFI card space, No.3 is SD card space

Step 3: Insert the rechargeable batteries

1).Use the T20 plum screwdriver to take out the screws of batteries space fixation as below

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2).Take out the fixation of batteries space. Pay attention to the battery polarity marked in the batteries space

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3).Insert the batteries (Note the battery polarity)

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4).Button on the Fixation of batteries space after inputting the rechargeable batteries

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5).Use the T20 plum screwdriver to fix the screws of batteries space fixation

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Inserting the batteries is finished!

Step 4: Install WIFI card

Note:If the MB SD C4 device you received has installed the Wifi card, please ignore this step.

 

1).Insert the WIFI Card into the WIFI Card Space

Please make the correct direction

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2).Push it to make it totally connected

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3).Cover the rubber and fix the screws to finish all the work

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Step 5: Connect SD C4 Diagnostic tool to your computer via green Lan cable, and then connect SD C4 to your vehicle via OBD cable

Note: if OBD cable cannot connect, you can use OBD 12V power supply to instead of it.

 

Step 6: Open DAS software, go to C:\programm files\SDconnect Toolkit folder to check if there are three files incl. Update_ automatic, Update_ manual and Update_ Special.

Note: If the file name is Update_ automaticx, Update_ manualx and Update_ Specialx, please change them to correct one.

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Step 7: Restart your computer

Step 8: Start to update firmware

1).Right-click on the lower right corner of the computer, select administration, and then select Software update

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2).Mainly upgrade three files, as shown below, upgrade order 02 -CSD-2-11.zip-> 01 -> 03

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Then it can work again

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Tech support: www.cardiagtool.co.uk