In this article, Newest SDC4 Mercedes Benz Xentry diagnosis software is used to test Actuation of function "Ethernet communication (DOIP). It is better than old sdc4 without installing the battery when upgrading the firmware, it is better than vxdiag C6 because it can directly run the original software. Mercedes Benz SD C4 with 1:1 copy program is supposed to be the best...