I also want to add that a technician from my area told me to "force start" leaving the Power button touched 1 minute, but this also also ignites the screen.
I also want to add that a technician from my area told me to "force start" leaving the Power button touched 1 minute, but this also also ignites the screen.
The input power should be checked for correct voltage and AMPERAGE. It might be helpful to power the unit directly from a known good power supply to isolate it from the boat. Normally if a unit refuses to turn ON it is in protection mode due to power not being good.
A factory reset doesn't do anything to the power system. It sounds like there is a short or bad component. I would recommend that it be evaluated for repair by a qualified dealer.