i detected some white pixel on top screen.. is that they call as deal pixel?
bought since 2009 and i rarely play with it

how much the cost if i want to fix it... you help would be appreciate... thanks

They don't look like dead pixels, they look more like light leaking from the screen.

light leaking, no harm =)

dead pixel would be a dot that doesn't emit light at all.

for example

Uh..Well you can call that Hot Pixel I guess.

so how much if i want to replace the top screen?

methinks all ye need is to get the thing open and move the thing around until the light leaking stops.

hmm.. the DS did fell before..
it is the main cause of that?

Most likely.

most likely... jsut move your upper screen a lil