I thought I downloaded the right firmware but I cant tell because anytime I go to load the R4 sdhc and turn my DS on it says "cant find sd/tf card". Im using a kingston micro sd with 4gb and I did format it. But everytime I turn on my DS it always says "cant find sd/tf card" Please someone help me fix this. I know someone here has had this same problem. Thanks for any help you can give.