Hi. A friend of mine found a GBA SP in a park a couple of years ago. Not being much of a gamer, he gave it to me, and I finally tried to revive it. I bought an USB cable charger, plugged it in and here's what happens: if the GBA is turned off, the red LED turns on for about 1/2 second, then it goes off. If the GBA is on, the green and the red LEDs turn on, the screen gets white, again for about 1/2 second, then it's all off. Needless to say, the GBA doesn't get charged and isn't usable when plugged. What could it be? A dead battery? Thanks for your attention.