You can use homebrew apps like dshb or dumping tools on a hacked DSi to create these files. Setting Up NAND and BIOS in MelonDS

. While the initial hurdle of dumping the file from hardware can be annoying, the payoff is a much more stable and feature-complete emulator, especially for DSi titles. It transforms melonDS from a simple "game launcher" into a virtualized piece of Nintendo history. from a DSi or DS Lite?

Running downloadable content ( .cia or .app files).

To unlock DSi capabilities in melonDS, you need a collection of six specific files harvested from physical hardware: Description Requirement DSi ARM9 Internal BIOS dsi_bios7.bin DSi ARM7 Internal BIOS dsi_firmware.bin DSi System Firmware nand.bin DSi System Flash Memory bios9.bin Legacy DS ARM9 BIOS For DS backwards compatibility bios7.bin Legacy DS ARM7 BIOS For DS backwards compatibility How to Dump nand.bin Safely

To ensure compatibility and remain within legal boundaries, the recommended approach is to dump the file directly from a physical Nintendo DSi console. Prerequisites A physical Nintendo DSi or DSi XL console. An SD card formatted to FAT32.

: The ARM7 wireless controller and system management BIOS.

To get melonDS up and running like nandbin did, follow these steps.

Under the BIOS/Firmware section, check the box that says if you want to skip menus, or uncheck it for the full boot experience.

If you use BIOS files from a DSi or 3DS, you will have zero compatibility issues .

Extract and copy the dumper homebrew application (usually an .nds format file) to your DSi's SD card.

Some possible areas of discussion based on your input could include:

If the emulator freezes, the NAND dump might be corrupted, or the BIOS files do not match the NAND region.