What steps should I take if I encounter a failure to perform a specific function?

Check if all pre-conditions are fully satisfied

Record the diagnostic process in video and send to tech support;

Advise the make, model, year and VIN of the vehicle;

Send the screenshot of About page of your device;

Advise the specific function you were doing;
 Advise in details the problems you encountered and what you have done on the vehicle.

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