Just want to post after fixing this issue on a friends camera.
by adding tape the lens mechanism you are not fixing the issue, you are hiding it and impacting the ability to properly focus.
The real issue is even more simple to fix, and results in complete repair and full focus.
1) Open the phone
2) take off the lens cover
3) You'll notice the little lens inside has a black housing with 4 tabs around the outside of it
4) This is the screw on cam, what you hear vibrating is a result of vibrations to the phone making this cap loose!!!!
5) Carefully rotate the cap clockwise until it's tight - do not bruit force is, just go gently until it's tight
6) put phone back together you are done.
My guess is, when the phone is placed somewhere that has micro vibration, such as the pocket of a car door with the car door speaker playing, or mounting it on a motorbike, the micro vibrations slowly but surely work that lens retaining cap loose to a point where when the phone attempts to focus it cant and in moving to try and focus, the retaining cap vibrates, causing blurryness and that blurryness cascades into a non-recoverable issue.
Tightening the retaining cap on this phone I was handed today, completely fixed the issue, phone now focuses and functions normally, no noise, and its owner says it's taking pictures clearer than it has in a long time.