Things You'll Need
Instructions
Place your controller face down on your work surface. Use a screwdriver to remove all the screws from the back of the controller. Most guitars will use a Phillips head screwdriver; however, there are modified controllers that will require an Allen wrench. Use your fingers to separate the front and the back of the controller. Place the back piece aside.
Unscrew the panel that holds the fret buttons in the neck of the guitar. Remove the panel and set it aside. Also remove the rubbery pad that covers the buttons.
Remove the fret buttons and clean them. Use a dry, clean cotton swab to clean around the edges of the buttons to remove any debris. If you notice that there are pieces of plastic sticking off the side of the buttons, remove them with a pair of pliers. The edges of the buttons should all be smooth.
Replace the cleaned buttons in their original color sequence. Place the rubber backing on top of the buttons. Replace the panel and screw it back in place.
Replace the back of the controller and its screws.