Answer to "Rattling sound when shaking/vibrating"On my phone, it is the rear-facing camera. I took out the camera and a slight tap on the side reproduces the rattling sound I have been hearing. I can take the spudger tool and lightly push the lens to the side and when I let go it rattles. On my phone, I am 100% sure this is the cause. Though my power button is also visibly loose, when I tap or shake my phone without the camera installed, the rattle is completely gone. I don't know if replacing the camera would fix it or not. I can't decide if it is worth the money to try. If someone has any experience with a replacement camera, that would be helpful.