Happy emulating, and respect the hardware you own.
To get a clean dump, you need a homebrewed 3DS. If you have a 3DS (any model: Original, XL, New 3DS, or 2DS) with custom firmware (Luma3DS), you already have access to the BIOS files. nintendo 3ds bios emudeck
file to unlock. If your games aren't showing up or won't boot, you likely need a file named aes_keys.txt Where to Put Your Files Happy emulating, and respect the hardware you own
EmuDeck primarily installs (or its active forks) for 3DS emulation. Citra can run many games without a BIOS file using hardware-accelerated emulation (HLE – High Level Emulation). However, certain games or homebrew apps may require a real BIOS dump for: or 2DS) with custom firmware (Luma3DS)