Chosen Solution

Hi Everyone, My Friend accidentally tipped his Ps4 over, and now it will not boot past the Ps4 logo. The Ps4 turns on and goes though the regular startup screen and shows the PlayStation logo then it gets a black screen, I thought it was a bad HDD, so I tried rebuilding the database with no luck. So, i swapped it out the drive with a 500GB I had laying around and installed the latest firmware. After the install of the firmware it booted up and showed the same ps4 logo screen and went black. Does anyone have any idea what it could be ? or If it is something i can help him fix?

Update: Initially i thought it was just the hard drive that had gone bad, but I finally found the problem with the ps4, it has the blue light of death. I noticed the light would go from being white to blue , then it would just pulse. I looked into it some more and found out that the ps4 had taken quite a fall, when it had been on for a couple of hours, which leads me to believe that one or more of the components on the system go knocked loose or something of that sort. Im not to knowledgeable on fixing the BLOD, so i am not gonna attempt to fix it and risk it getting further damaged without knowing what my friend wants to do with it.