this happened to me also after a bad start, double tap, my screen is dead now too. I think it has to do with the in rush current.I was out this morning doing some shopping and when I got back in the car and started it, noticed instrument panel was completely dead. Normal warning lights came on for a second during startup, but nothing else. Infotainment system was normal. Car drove normally
Did a few restarts with no change. I drove home ( luckily only a few miles) like that.
After getting out of the car, locking and unlocking the car ( thinks it's some sort of soft reset) everything went back to normal. Not sure what is going on, first time anything weird like that happening. Suppose I could have possibly done a bad start button push (i.e. Double tap)? Maybe it's IP address got confused?
Anybody else have an experience like that?