There's a litte guide about how installing OOT3DHAX offline ! You only need : «The Legend Of Zelda : Ocarina Of Time 3D» on cart, with USA/EUR/JPN region . A 3DS with a pirmary exploit entrypoint, on a 9.0.0 to 11.2.0 firmware. 1) Download this homebrew : https://gbatemp.net/attachments/oot3dhax_installer_offline-zip.28171/. 2) Extract the archive, and copy the folder named «oot3dhax_installer» to your «3ds» folder of your 3DS. 3) Go to https://smealum.github.io/3ds/ download the otherapp payloads of your 3DS version (section «Otherapp/ropbin payloads»). 4) When the download is finished, renamme the file to «payload.bin» and put it on the root (and on the «oot3dhax_installer» folder) of your SD card. 5) Go to «oot3dhax_installer», and go to «saves» folder. 6) Copy the file of your region to the «oot3dhax_installer» folder. 7) Renames the files to... «save01.bin», if you want that pirated save install on Slot-1 of OOT3D. «save02.bin», if you want that pirated save install on Slot-2 of OOT3D. «save03.bin», if you want that pirated save install on Slot-3 of OOT3D. 8) Insert the SD card to your 3DS. 9) Start the homebrew launcher and select the oot3dhax installer homebrew. 10) Install. If this don't work, delete the save of your game by presing A + B + X + Y on the boot of the game. Done !