E80 Help

I have a Raymarine E80 on the coach roof that my AIS and Radar are connected to (and also to use as a backup plotter).

Currently, when it is switch on, it goes to the startup page (photo) and that is as far as it goes. Along with this, none of the the softkeys work including the on/off button.

I have tried a factory reset reset with no joy.

Has anybody else experienced this?