Chosen Solution
My games will not isert and stay in the slot for my nintendo ds xl to properly read the game
There is something stuck inside the slot. Get a flashlight and a pair of small tweezers. There is a small door that closes when there is no game inside the slot. Push that door open and look inside with a flash light and see if there is something stuck inside. If there is pluck it out with the tweezers.
http://www.youtube.com/watch?v=7LxujIMq3… check out the video it is really helpful. if the game slot reader is bad itself.