| Purpose | Method | |--------|--------| | Install boot9strap | Put boot9.bin + boot9strap.firm on SD card, trigger ntrboot or SafeB9SInstaller | | Emulation (Citra) | Some older Citra builds needed it for decryption, but modern Citra or Panda3DS don’t require it directly | | Key extraction | Use boot9.bin with 3ds-hw-tools or boot9strap-tools to extract movable.sed , otp.bin , etc. | | Forensic analysis | Reverse engineering the boot ROM |
Modern guides (2020–present) rarely require users to manually handle boot9.bin except for advanced recovery or forensic analysis. Boot9.bin 3ds