Nand.bin Melonds [best] Page

You primarily need nand.bin if you want to use in melonDS. Without it, the emulator defaults to regular DS mode, which lacks:

| Error Message / Symptom | Likely Cause | Solution | |-------------------------|--------------|----------| | “Firmware not found” | bios7.bin or bios9.bin missing | Add the DS BIOS files. DSi mode still needs DS BIOS for backward compatibility. | | “Failed to load NAND” | Path to nand.bin is incorrect or file permissions error | Re-check the path in Config → Emu Settings. Run melonDS as administrator once to test permissions. | | melonDS crashes on DSi boot | Corrupted NAND dump or wrong size (must be 256MB or 512MB) | Re-dump your NAND using a reliable tool. Ensure your SD card has no bad sectors. | | “The saved data is corrupted” in DSi game | Mismatched console-unique keys in NAND | This happens when using a NAND from another DSi. Only a personal dump fully works. | | Wi-Fi doesn’t work in DSi mode | Missing nand_mac.bin or incorrect encryption | DSi Wi-Fi requires a valid MAC. Use your dumped nand_mac.bin or let melonDS generate a random one (less reliable). | nand.bin melonds

: To obtain this file, users typically use homebrew software like hiiyaCFW or Dumptool on a physical DSi. This process extracts the raw memory into a format that melonDS can read. You primarily need nand

Use a utility like dumpTool or nand-dump to create a backup of your NAND. | | “Failed to load NAND” | Path to nand

For a step-by-step walkthrough, the following community resources are highly regarded: DSi Emulation on melonDS - A Step by Step Guide (Reddit)

Now go play The Legend of Zelda: Phantom Hourglass with perfect microphone emulation. You’ve earned it.