The simplest method is to put all your required BIOS, firmware, and NAND files directly into the emulator’s main configuration directory.
The DS has 4 MB of main RAM and 656 KB of VRAM. Some games use memory mirroring or aliasing tricks. Nandbin’s fork , treating all memory accesses as direct. This speeds up memory lookups by ~15% but breaks titles like Mario Kart DS (mirroring used for anti-piracy) and some homebrew.
To add games, use the DSi Title Manager within the emulator to import .nds files directly into your virtual NAND. Pro-Tip: Back up your NAND! nandbin melonds
Whether you found this guide because you are trying to find old videos of Nandbin ranting about a broken DS game, or you just want to know how to get Castlevania: Dawn of Sorrow running at 4K resolution on your PC, you have come to the right place.
Unlike standard DS emulation, which often works out of the box, DSi mode in melonDS requires a few extra system files to function. The nand.bin is the most critical among them—it is essentially a digital clone of your DSi's internal flash memory. What exactly is nand.bin ? The simplest method is to put all your
To enable DSi emulation, melonDS requires a specific set of files alongside the firmware.bin ): 128 KB. NAND Image ): Approximately 240 MB. 3. Acquisition and Dumping
If you need help troubleshooting specific error codes, let me know you see or which console version you dumped your files from. Share public link Nandbin’s fork , treating all memory accesses as direct
: Go to Config > Emu settings > DSi , link your NAND file, and set the console type to DSi .
The Ultimate Guide to NANDbin in MelonDS: Setting Up and Running Nintendo DSi Games
When melonDS attempts to launch in DSi Mode, it reads this file to reconstruct the console’s custom interface. The file must be accompanied by three additional system files for decryption and execution: : The system instructions for the ARM7 processor. bios9.bin : The system instructions for the ARM9 processor. firmware.bin : The operating system boot framework.
If you have a NAND dump from a DSi ( nand_dsi.bin ), melonDS can run DSiWare and enhanced DSi games. You can manage these via the DSiWare Manager in the tools menu, allowing you to play the digital exclusive library that most people missed.