I came across a problem today. My bolero unit kept switching itself on every time I shut the car. I would stand outside and watch it turn itself on lol. Dealers had never saw this before. But after process of elimination I found out that if you press both dials in on the unit and hold them it resets itself. Same as a mobile phone. Which makes me think it was stuck in a loop with the software. So that cured it. 😁memory fault.