long story, it caught a virus when i was transferring some files on it (in my case i wanted to play the old pokemon versions using a program that allows the ds to play) and from there the virus makes it impossible for me to remove the usb which stores the sd card, i tried to backup the file, i don't know if i switched the backup file with a new one since the flashcart's system files(i don't know how to call it), caught the virus. so i decided to renew it by downloading a new system from its website. And i think(?) i overwritten the file, so all the saves were gone, thanks to the virus :|.Luckily the sd card didn't malfunction only the usb im using to transfer did; and luckily i have a spare transflash to transfer my files on my sd card. Sadly, all my save files, shiny id/sid abuses were deleted. D: