When starting the car, a little explosion noise was heard and the vehicle was left with no signal at all: it does not start, the dashboard does not work, the lights do not turn on and no function is actually working. The battery is in good state, so I have no idea what might be wrong.
Most likely, one or more main fuses are burnt. They are on the front part, next to the engine, and blown fuses are clearly noticeable. Their failure has to do with the humidity or condensation that is accumulated in the starter, especially when it is for a long time without being started.