Firstly, you should offer our customer service the number as following:
ID Code: 2175900747
Serial number: CREN16811051111
Model number: C168EN
Secondly, our customer service will give those number to our technician, after the technician give us the activate number as following we will give them to you:
Thirdly, you can enter the activate number that we give to you into the following place:
Attention: CarBrain C168 needs to activate again if you change the computer to install or reinstall the computer system. Then you should give us your new number and then we will you the new activate number.