Yep I would be! Start documenting everything. I found a blog somewhere on tests on the android dynavin. 75% of them came back. Main problem, it was bugged. You might be fine provided the seller responds and rectifies. If you got it from Incarmedia
I can't comment on the new owners and what they will do, but judging the way they treated me, who knows. I'm trying to find out if they're are even certified to perform warranty repairs on the unit. I called
Dynavin in China today and I'm not to sure where
It will go as they don't speak English well.