I recently replaced the LCD on my iPhone 3g. everything (including vibration) worked great! then seriously from one text to the next the vibration stopped. it will not work. I've restored completely from DFU and everything. Heres the kicker....I open the phone while its on just enough to separate the glass from the housing and vibration works. as soon as i try to reassemble the phone vibration stops...completely. When i replaced the LCD, i had to remove some tape on the side for the screws...i didn't put it back on and vibration was good for a short time. I've tried putting tape back on the side i removed it from still to no avail. I know the motor is still good and its not a software problem. Any Ideas?