The extra effort to dump your BIOS and NAND is rewarded with the most authentic DSi experience on PC. You can finally play that forgotten DSiWare title or revisit Pokémon Black with camera functionality and faster load times.
Once you feed melonDS the correct BIOS and NAND files, it becomes arguably the best DS/DSi emulator available—stable, fast, and with flawless local wireless support. Melonds Bios Dsi
Without these "missing" BIOS bits, the emulator can't properly handle the DSi's decryption keys . For users, this means: The "Experimental" Tag The extra effort to dump your BIOS and
In the DSi configuration panel: