Here are a few steps on how to fix a Game Boy SP shoulder button:
- Identify the problem. Is the button not working at all, or is it just registering as pressed even when you're not pressing it? If the button is not working at all, it's likely that the contact pads are dirty or corroded. If the button is registering as pressed even when you're not pressing it, it's likely that the button itself is broken.
- Clean the contact pads. If the contact pads are dirty or corroded, you can clean them with a cotton swab dipped in isopropyl alcohol. Be sure to dry the contact pads completely before reassembling the Game Boy SP.
- Replace the button. If the button itself is broken, you can replace it with a new button. You can find replacement buttons online or at a game store.
- Reassemble the Game Boy SP. Once you've cleaned the contact pads or replaced the button, you can reassemble the Game Boy SP. Be sure to follow the instructions carefully to avoid damaging the console.
Here are some additional tips:
- If you're not comfortable fixing the shoulder button yourself, you can take your Game Boy SP to a professional repair shop.
- If you're cleaning the contact pads, be sure to use a high-quality isopropyl alcohol. Low-quality alcohol may not be effective in cleaning the pads.
- When reassembling the Game Boy SP, be sure to use the correct screws. Using the wrong screws can damage the console.
I hope this helps!