Why don't volume or vibrate buttons work after replacing screen?
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Just replaced the screen for an iPhon4 for AT&T, everything works fine except for the vibrate switch (no vibrations at all), and the volume up/down buttons don't do anything. Took it apart again to check, the cables seem fine, the vibrator motor pins are making good conneciton..any ideas? When i flick the vibrate switch on, the OS does go into mute mode, just there's no vibrations anymore. Help.