Been having issues running the dark spire in my ds, so I stuck the flash cart in another and it works fine. Is there a difference in a 1 year old ds, and maybe a 2yr old one, or maybe in the colors as far as hardware goes? The black ds I have is the one acting funny with the cart, but it works 100% fine in other games. Also is there a way to clean the pins on the inside of a ds? I switched because my older one was not recognizing my flash cart and I would have to blow into the ds to get it to work, but it boots fine every time in the black ds.