Dead Navigation Backup Camera and Radio after 12v battery Replacement

Please Help
2014 not sure if pkg 4 or pkg 5 Prius with only 31,500 miles on it

The Radio /Stereo , Navigation and backup camera went blank and will not work after replacing the 12volt battery. Unit seems dead other than:

I can push and hold the open button for about 15 seconds and the screen will open and eject any discs but will not close after pushing the button again

The buttons around the exterior of the radio unit will blink once in a while.

So it appears that power is getting to the unit but it still will not work.


All of the above worked perfectly until I changed the battery. I have disconnected and waited for some time and then reconnected the battery hoping that might clear any glitches. I also have looked at many of the fuses and have not found any that are blown.

Any advise would be appreciated