So I purchased an r4i revolution card. I purchased it from a seller on ebay. I got it home and put it in my fat ds. And it booted and worked! So I tested a game it also played. So I took the sd card out and went to put my own games on it. And was like well I dont want the games that where on it when I got so I'll just delete them well I deleted an important file I guess because now I get a white screen after I launch it. And I spent about 4 hours last night trying to get the correct files on it to run it. With no luck. Any help would be great!! I attached a photo of the card in question.







