Everything works fine, only the dock connector will neither charge nor synch my phone. Andree Wirth | Head of Support & Service February 11, 2015 10:27 Updated Follow This large connector is responsible for everything dock. Make sure it's plugged into the logic board. Related articles My iPhone 4 doesn't make a peep, the volume controls, mute button or headphone jack have stopped working! Comments 0 comments Please sign in to leave a comment.