Things You'll Need
Instructions
Turn off the power on the Game Boy Advance SP and make sure the Game Pak is firmly in place with the label facing away.
Examine the screen. If the unit's screen is broken, you should see discoloration.
Make sure the power switch can slide into the "On" position.
Check the screen again. Make sure the protective plastic film has been removed. If you see bubbles or discolored lines on the screen, the film may be the cause.
Adjust the contrast knob on the side of the unit. From here, you can check the screen's brightness.
Use a different game to determine whether the problem is with the Game Pak or with the unit itself.
Ensure that the battery is fully charged.
If the problem remains, contact Nintendo Help/Support for repair or replacement.