I got the R4ids.cn R4 3DS card last year for my DS lite but I'm trying to upgrade from the "Dorasu" icon to the latest one to try and get it working on my latest firmware 3DS. I got the files from the website but everytime I load it on my DS lite with the correct file, it keeps saying, "card fail" everytime I try to update it. My card is definately revision C but I'm not sure if this is another card or if I'm doing something wrong in upgrading this.