
Mb sd c4 plus/mb sd c5met such error and can not communicate with car, how to solve? it seems the main unit lack the program file, and you need to update the hardware.
Here we share the procedure to update and re-flash MB SD C5/C4Plus, in case if something about firmware goes wrong you may need it.
SD Connect C4 / SD Connect C5 Hardware Upgrade Instructions:
* Path one: C:\Program Files\Mercedes-Benz\SDConnect Toolkit
* Path two: C:\Program Files\Softing\Diagnostic Tool Set 8\8.03\Interfaces\DCDI_DPduApi\eCOM_Toolkit








