With ctrtool :
Have a specific error not covered? Boot into GodMode9, check your key slots, and cross-reference with the official 3DSbrew wiki. The answer is almost always a missing slot0x18 key. 3ds aeskeystxt work
Unlocking the Vault: How aes_keys.txt Powers Your 3DS Emulation With ctrtool : Have a specific error not covered
Shared keys used for general system decryption. Setup Locations check your key slots
The aes_keys.txt file must be placed in a specific "sysdata" folder within the emulator's directory to work correctly . Typical File Path C:\Users\[Username]\AppData\Roaming\Citra\sysdata\ Android Android/data/org.citra.citra_emu/files/citra-emu/sysdata/ iOS (Folium) On My iPhone > Folium > 3DS > sysdata macOS ~/Library/Application Support/Citra/sysdata/ Linux ~/.local/share/citra-emu/sysdata/