Hey, I recently brought my iPhone 4 into Apple because the sleep button was no longer working. They gave me a new phone, not sure if it's a refurb or not but I noticed then when the sleep/wake button it pressed, there's a vibration/rattle I can hear coming from under the button. Also, the sleep button doesn't seem as tactile as the last phone. I know it's not the auto focus camera because it sounds a bit different. I'm not sure it's really worth going to back to Apple for but I'm curious to see if anyone else has noticed this. Thanks
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