If you are seeing a shutting down message, you did not turn off the system all the way so you are not actually turning it on. Hold in the power button for about 10 seconds, that will turn off the system then turn it on again.
If you are seeing a shutting down message, you did not turn off the system all the way so you are not actually turning it on. Hold in the power button for about 10 seconds, that will turn off the system then turn it on again.