Will a Factory Reset Delete Saved Game Data on Nintendo DSi?

Yes, performing a factory reset on a Nintendo DSi will delete all saved game data, including:

• Game saves
• Downloadable content (DLC)
• System settings
• Wi‑Fi passwords

It essentially returns the DSi to its original out‑of‑the‑box state.

Important Note: If you have any important game saves, back them up first using the DSi’s “Save Data Transfer” feature to an SD card.