Mine does not rattle and is solid as a rock.
MCKENNATECH said:Yes mine rattles, and so do about 99% of them. Go to an Apple store and you'll hear on mostly all of them. I was told from Apple it's the little motor that vibrates, and that's normal to hear because if it were tightened, it wouldn't work properly. I think it's crap personally. I understand a motor makes it vibrate but with Apple being the incredible company they are, it blows my mind that there is annoying cheap sounding rattle like a toy when you set it down, tap it, move it, etc. It sucks!
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Lmfao at this one! It is 100% not the vibrating motor!
It is however the auto focus on the camera and 100 % normal!
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Both the ip4 and s camera lense move in and out using electro magnets if u turn your camera towards you when it's focusing you will see this in action. When the app is closed this action is no longer powered up leaving slight play in the lens. It's the lens moving freely that generates the noise.
The linear vibration motor in the ip4 can't rattle if you've seen one you'd understand why and the ip4s motor is totally different again will not generate a rattle.
Its pretty obvious that the sound is coming from the power button. Sounds from a motor? sheesh, this phone attracts some idiots...