We have old Nintendo DS lite. But it's not working. When I swich on it, light is on and green, but then (upper and down) screens blink and swich off. I change the battery (i tested on good Nintendo, it works), but it was the same: I swich on, light is green and screens are flashing till i swich off Nintendo by myself. I think it can be problem with Upper screen (connection with bottom), but most sites told that flash can make only ONE screen, but i have problem with two. I read some onformation about fuses, but mine Nintendo Lite has a little bit different symptoms. Help me please.