Chosen Solution
So I had my 2ds XL for 2 years now and I had no problems with it until this March when the console had a dim shadow on the top left corner of the top screen. I noticed that it wouldn’t turn on anymore and the blue light would go out with a popping noise. Sometimes I would get lucky and it would turn on no problems except for that dim shadow. Just recently I was looking through some things in my 2ds and the shadow completely disappeared! For a few seconds that is… I tried to figure out what caused the shadow to go away but I found nothing. The screen is totally visible even the dimmer part of the screen. I believe it’s the back lights of the LCD screen that’s causing this issue? Any tips would be greatly appreciated. Thanks!
Shiny Flygon possibly defective backlight on the screen. Replacing the screen should fix this. New Nintendo 2DS XL Top Screen Replacement