If these folders do not exist, create them exactly as written.
To help you get started with your specific project, let me know with the firmware. If you want, tell me: Nintendo Dsi Firmware Download
The final official firmware update released by Nintendo was , distributed in localized variants based on your region: 1.4.5U (North America) 1.4.5E (Europe) 1.4.5J (Japan) 1.4.5K (Korea) If these folders do not exist, create them
If you want to play backup copies of your physical games, run emulators (for Game Boy, NES, or Sega Genesis), or use homebrew applications, you do not want standard official firmware. Instead, you want to install . The gold standard for Nintendo DSi custom firmware is HiyaCFW combined with a frontend called TWiLight Menu++ . How to Safely Modify Your DSi Firmware (The Modern Way) Instead, you want to install
Play NES, Game Boy, Game Boy Color, and Sega Master System games. Region Free: Play games from any region. How to Install CFW (The Modern Method)