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  • Answer to: Why iPhone 4 doesn't vibrate?

    howdy all ive done a bit of poking around in my iPhone4 after having to replace the screen twice. My vibrate also stopped working as well. things i did notice when i addressed the problem. there is a ribbon cable adhered to the side of the 3.5mm jack which also is inside of the space the vibrator operates in. during a screen repair or due to moisture/skin oil being introduced into the phone the ribbon had come loose frome the side of the 3.5mm jack and was directly impeading the vibrators unbalanced shaft from spinning. a program like ivibe will force the vibrator to spin and create room for the unbalanced portion of the shaft by esentially rubbing a groove. if your technical you can open the phone up and visually observe if this is the case for you. additionally info. the vibrator recieves its signal/power from two copper preasure contacts on the bottom, these can be bent slightly and extremely carefully to create more preasure when the vibrator is seated. the two screws in the upper right corner are all tha...