The DSi is picky about SD cards. If your card is formatted as or NTFS , the DSi will not read the binaries correctly. The required format is FAT32 (with 32KB allocation unit size). Cards larger than 32GB must be formatted using third-party tools (like GUIFormat) to FAT32.
Avoid using "trimmed" (.trim.nds) files; always use the full-size dump. 2. Update TWiLight Menu++ and nds-bootstrap twilight menu dsi binaries missing install