What to prepare before update:

double A battery 6pcs, laptop with sd c4 software installed, c4 main part, lan cable, obd cable

Step 1: input the double A battery 6pcs into the c4 multiplexer, like the picture showing

Step 2: connect the sd c4 to your car, click the connection icon at the right-bottom of laptop, see the picture below:

Open administration

then update the bootimage 2_3zip and CSD_2_11 zip as the picture showing below:

Notice: If you get this problem showing as blow when you open the administration, just need to restart your laptop, then the problem will be fixed.

If you want to know more about Mercedes Star Diagnostic Tools,  please click benz trouble repair.