Recently, my Acekard 2i has not been working. It freezes when I turn it on sometimes and every time I turn it off, then turn it back on later, it says there is not card inserted. I have to keep blowing it and trying to see if it works and it usually works after 5-8 tries. Now whenever I click on a game, the top screen turns black and the bottom screen turns white. Should I just format it and redownload all the firmware?
Yes try that. That sometimes happens to me because the card is sort of loose and if it is pulled slighty it just freezes but that could only be me but if it doesnt work after a reformat and all i think you should try to get a new one
If your DS is fully saying there is no cart in there, the contacts are probably dirty. If you can, put a VERY LIGHT amount of rubbing alcohol on a Q-Tip and gently run it over the contacts on the cart. You might be surprised at how much dirt you pick up. Also, blow into the card slot on the DS (dry air, don't accidentally spit in there). Whenever my DS has a detection issue, I blow on the contacts and in the cart slot. Usually gets it working again pretty quickly.