Cannot start PS4, have initialised & reinstalled system several times?

Hi, so I unplugged my PS4 by the power cable which has resulted in it starting in safe mode with the message "Cannot start the PS4"

After looking into this I have followed all the correct steps. My HDD is formatted correctly, the system software file is the correct 1gb one, the folders are the correct format.

I get to the option Initialise PS4 and Reinstall System Software, everything looks like it's working, the process is fairly quick. The PS4 restarts and I'm back where I started, "Cannot start the PS4."

Is there anything to be done or do I need a brand new hard drive?

Thanks in advance!