When setup Mercedes Benz star c3, you maybe come across such fault "Error during initializing, no link could be established between the diagnosis gateway and the control unit" as the following shows.




I give you a solution that is to check whether you set right COM Port. If you buy star C3 from uobd2.com, please set the COM Port as follows.

First step: right click “my computer”, and then click “Properties”.



Step 2: Under the “System Properties”, first click “Hardware” and then click “Device Manager”.




Step 3: under Device Manager, click Communication Port (COM2), open the Communication Port (COM2) Properties, then click “Port settings”, please be sure “bits per second :115200, then click “ Advanced”, under the “ Advanced settings for COM2”, please be sure the COM Port Number is “COM2”

Step 4: your Mb star C3 is ready to work.

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