Solved!!! Solved!!!!!
Ok i had the same problem and tried every software solution i could think of, then i realized that it is a hardware problem so before i bought a new camera i did this. Dont ask me what made me think of it but this is just how my brain works. While the camera app was open and it was buzzing all around ,i took a tiny ,tiny neodymium magnet and put it near the main camera opening on the rear and all of a sudden the buzzing and shaking stopped. So i put a little drop of ca glue to hold it in place and now its fixed, well sort of, at least temporarily till i can buy a new camera assembly. I was trying to think of why this fixed the issue but im kind of burnt out right now, any help is always appreciated.