It’s really annoying when you have something under warranty only for the product to go out of that warranty. Such was the case for me with my DS Lite. I brought it last year (9th of September to be exact) and I discovered an annoying pseudo-dead pixel on my bottom screen just last night. I can’t return it without dishing out some repair costs to CodeStorm UK (Nintendo’s repair company here) so I decided to fix it myself or at least try to.
So off I went to Google and searched a bit. I came across a NDS Homebrew App called LCD Tester. It just rapidly changed both screens from red, green and blue. It didn’t do much but I read that you can apply a little pressure and that might work. So I did, it didn’t help either.
At this point I was pretty sure I was stuck with this problem but I thought “What if it wasn’t a dead pixel but instead it was a red pixel?” so again I went to Google and search for “DS Lite red stuck pixel”. This time I found a video showing that you can literally wipe off the red pixel with a microfabric cloth. Fortunately I had one on hand (which came with my cell phone).
So I try it a couple of times and eventually after two minutes of constant wiping the red pixel fades away. Great! It did return once but again I wiped it away! :D