The Game Boy Advance SP from Nintendo is the last in the line of Game Boy products. As such, it can be difficult to find replacement units in the event of a screen failure. If the screen on your Game Boy Advance SP breaks, there are a few things you can do to try and fix it. Fortunately, repairing a Game Boy Advance SP screen is not a particularly difficult task.
Diagnose the problem. Many times the issue will be obvious to spot (such as a cracked screen), but take the time to be sure of the origin of your problem before attempting to repair it.
Reset the screen. Sometimes the problem with the screen is not a problem with the screen at all, but with the game you have in your machine. By swapping out the game and hard resetting the system (turning it off then back on quickly), you can reset the screen. If the image locks up again, it is a problem with the screen. If not, it is the game that has failed.
Replace the screen. If the screen is physically cracked or otherwise damaged, the only option you have is to replace the screen. You can do this by unscrewing the Game Boy Advance SP and slowly removing the top half of the shell. Once the shell is removed, it is as easy as unscrewing a couple of screws, unplugging the old screen and plugging in the new screen. Once done, simply place the shell back on the main board of the Game Boy Advance SP and reapply the screws.
You can find replacement parts for the Game Boy Advance SP on many Websites, like eBay. In fact, if you are up to the task, you can build your own Game Boy Advance SP for less than it would cost to buy one.
If you should be forced to replace your Game Boy Advance SP screen, know that doing so will violate the warranty on the product. This means that, should there be a catastrophic failure with the hardware, Nintendo will not replace or repair it.