Hello guys. I have a mini cooper s r56 with navigation system. 2 weeks ago the system suddenly stopped working. A few seconds later it started again. This happened a few times. every time i started the car the screen blinked 3-4 times. The service told me that the core of the system is burned and it costs 850 euro. The same day it did it again. It may be accidental but the screen 1-2 times blinked when i closed the car door. This makes me think that may something doesn't fit well. Have you anything in mind?