My son did the same - I found that he had somehow put his games into the system folder so wouldn't read from the ds, using the usb on the computer open the folder where the games are located and open the drive your usb is in - then drag them over (as a folder) making sure they don't go into another folder again!! Hope this helps!!
My son did the same - I
My son did the same - I found that he had somehow put his games into the system folder so wouldn't read from the ds, using the usb on the computer open the folder where the games are located and open the drive your usb is in - then drag them over (as a folder) making sure they don't go into another folder again!! Hope this helps!!