The Nintendo DS Lite contains six action buttons for in-game play: four thumb buttons and two shoulder triggers. There are several ways in which the "L" and "R" trigger buttons can stop working correctly: refusing to press, remaining permanently pressed, or not popping back out when the finger is removed from the button. If your DS' "L" or "R" trigger is not working correctly, the system needs to be opened up so the spring can be replaced and the button cleared of obstructions.
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Things you need
- Phillips screwdriver
- Tri-wing screwdriver
- Clean toothbrush
- Replacement spring
Close the Nintendo DS and turn the console upside-down so you are looking down at the label.
Unscrew the two Tri-wing and five Phillips screws on the console's underside. Check which springs go in which holes for later reference.
Pry the bottom shell of the console off and set it aside. Take care not to let the shoulder buttons fall out while you open the console.
Remove the spring from beneath the "R" button and lift out the button. Clean the button and housing area with a toothbrush. Nintendo salesman Ben Barrett explains: "Sometimes the shoulder buttons can get clogged with debris that stops them pressing or popping out. You can clean this with a new, clean toothbrush."
Place a replacement spring in the housing for the "R" button, and fit the button into the housing over the spring. Check the "L" button to see how the spring and button fit together.
Close the shell over the repaired button and replace the screws, making sure to place the right screws in the right holes as they are of slightly different length and gauge.
Tips and warnings
- Opening up your Nintendo DS will void your warranty. If your machine is less than a year old, contact Nintendo before attempting repairs, as the company offer comprehensive repair and replacement services.
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