FYI Vibrate motor
Just did one of these last night, worked perfectly except that the vibrate motor stopped working, took it back apart and realized that the little prong on the ear speaker cover sometimes gets bent a little with removal. I just pushed it back in and the vibrate motor then had enough room to work again. Make sure that you push it back in all the way first time unless you want to do more work than you have to! These phones have no space to spare!