I disconnected my PS4 from the mains last night due to a thunderstorm. This morning I turned it on again, it started but then the screen was black and there was something in white writing with system memory status checking. Below was a loading bar, which loaded quickly. The loading bar was then almost through but then the monitor was black.
That's the way it is now. The monitor is flashing, which means that it is no longer connected to the Ps4, the Ps4 is ON. And shines white.
The monitor does not show anything and is completely black. The Ps4 lights up white, makes the usual noises but it is just not displayed. The monitor is also on because it is flashing yes.
Do I have to wait now?
Did you just try to wait and see (about 10 minutes?