How to Update & Re-flash MB SD C5C4Plus Firmware

Here we share the procedure to update and re-flash MB SD C5 DOIP/C4Plus, in case if something about firmware goes wrong you may need it.

1.Procedure to update firmware:

Notice: MB SD C5 needs six AA batteries while DOIP MB SD C4 Plus doesn’t.

Connect the device to OBD port or 12V power by main cable.

Path 1. C:\Program Files\Mercedes-Benz\SDConnect Toolkit

Path 2. C:\Program Files\Softing\Diagnostic Tool Set 8\8.03\Interfaces\DCDI_DPduApi\eCOM_Toolkit

In both folder, switch “update_automaticx”“update_manualx”“update_specicalx” into “update_automatic”“update_manual”“update_specical” (delete “x”).



Reboot your computer as required.

Right-click “SDconnect Toolkit” and select “Administration”.

Select the device when it’s identified.

Go to “Software update”.

Download “00_ClearCeFlashDisk_zip”“02_CSD_2_11.zip”“01_Bootimage_2_3.zip”“03_PmPic29_Cpld13.zip” successively.

Update & Re-flash MB SD C5/C4Plus Firmware

2. Procedure to re-flash firmware(without battery):

Notice: Make sure to turn off PC’s firewall before operation.

Right-click “SDconnect Toolkit” and select “Goto BIN directory”

Open “Toolkit.ini” by editing tool.

Find “MinUpdateVoltageVBatt=7200” and “MinUpdateVoltageVExt=11000”.

Switch two values into “0”.

Reboot your computer as required.

Right-click “SDconnect Toolkit” and select “Administration”.

Select the device when it’s identified.

Go to “Software update”.

Download “02_CSD_2_11.zip”“01_Bootimage_2_3.zip”“03_PmPic29_Cpld13.zip” successively.

Device’s indicator will flash during downloading.

Update & Re-flash MB SD C5/C4Plus Firmware