We just purchased this unit for our dealership to help us with some diagnosis issues prior to sending them out for repair as we have been taken advantage of.  We plugged the VCI unit into an Audi that showed a check engine light after a jump start and the red error light came on the VCI.  No matter what we plug it into now the light shows error and it will not communicate with the car.  We have only had the unit 3 weeks and it has only been plugged into three cars.  I went on line and updated the firmware of the unit but it just says error.  The manual says that light mean major hardware problem.  We are not mechanic, but need to know what the heck to do?  Does anyone have an idea on how to make it work again?  

 The light does come on and then goes out, but the scanner says there is no connection.  Sometimes it said turn off ignition and try again in 10 seconds and others it just says no connection.  

 Thank you.  I will have to check in the morning when i go back to work.  did not register a bluetooth error that i remember.  just looked like i was not connected to the car in any way.  I'll take a look at these ideas in the morning and see if the tech support can help. Being only 3 weeks old it is extremely odd, but just my luck.