PS4 Not Turning Onn

I recently bought a new power supply cause no matter what I did the ps4 did not turn on so I thought power supply was the problem. After buying the new supply the ps4 did turn on but did not open upto the main screen and automatically turned off again after a couple of tries by unplugging it it was still the same. However now on the third try its in the same position again no matter what button I press it wont turn on eventhough its a new power unit. Could anyone please help me with my issue.