This forum is very helpful. I have an issue with Mt 2 year old AVIC 7200 NEX. A few years ago I updated the software with the hero from this forum. Everything seemed fine until today. Was driving down the road, looked over and black screen. Hit the reset button and get a white screen briefly with a vertical gray line for like 1/2 a second then black. Put truck into reverse and no camera display. Thoughts? Fixes? Thanks in advance