The DSi (Nintendo DSi) is an enhanced version of the classic DS handheld. Unlike standard DS games, the DSi has unique system firmware that controls booting, security, and DSi-exclusive features (such as the cameras, improved audio, and DSiWare shop).

DSi BIOS files are dumps of the internal Read-Only Memory (ROM) chips from a physical Nintendo DSi console. These files contain the low-level instructions that the console uses to:

Common DSi BIOS filenames include:


Score: 2/10 for Download Sites | 10/10 for Self-Dumping

While the temptation to simply click a "Download" button for DSi BIOS files is high, the practice is fraught with legal issues and malware risks. The files hosted on random websites are often outdated or corrupted.

If you are setting up an emulator like melonDS or the Analogue Pocket, the time investment required to dump your own files from a physical DSi or 3DS is well worth the safety and compatibility guarantees.

Final Recommendation: Avoid third-party download sites. Acquire a physical DSi/3DS system (they are relatively cheap) and use homebrew tools to generate your own clean, legal BIOS files.


DeSmuME has weaker DSi support, but it does work. Navigate to Tools > Firmware Settings and load your BIOS files manually. Note that DeSmuME may not support all DSi camera or SD features.

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Dsi Bios Files Download -

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