In the first contact the problem was explained to them in a BMW and it was said that it was random and after Running on Street for a while, the computer was sent and the service and shipping was paid. After a few days they sent a video with the computer connected to a bmw and showing that the car was fine, and that they would return the computer because it did not have faults, at that time we contacted them again and explained again that it was random and after running for a while, they said that if that happened like this it was not the computer, I don't understand why they made us send and pay for their review if the response was from the beginning of the process