Aporte original por: bcrismon ,
Definitely use the click wheel button replacement guide. When you get the click wheel off of the board it sits on, you'll see some tiny circular rubber bumpers, one on each button. You'll find that the rubber bumper that holds the center button "up" has slid off to the side. Just pull it off, use some good glue to stick it back right to the center where its supposed to go. Let the glue dry, then just reassemble by following the guide in reverse. Should be good to go.