Chosen Solution

I recently purchased my MacBook Pro about 4 days ago, when I moved it a day ago I could hear a noise coming from the right hand side top part of the Mac, it now can be heard in the middle of my Mac, it sounds like a single screw moving freely inside, is it ‘normal’ or I have gotten a defective MBP?

Do not turn it on. Open the back and look for the source of the sound.