Use it from an already-hacked 3DS to create a homebrew entrypoint either on a different 3DS or on the same 3DS, which you may want because it's faster/more convenient/just plain neat to have.
- Wipe your OoT3D saves (start from home menu, hold down ABXY), ideally after backing them up from svdt or save_manager. The installer will not do any of this for you.
- (Optional) Run
make clean all, this will get the latest build, but it is not needed. - Clone the repo and copy the folder within
3ds/into yoursd:/3ds/.
- Open installer via a *hax. Make sure to select OoT3D as the target application. (If you don't see a target selection screen, exit and restart.) Follow the instructions.
eShop versus gamecard is irrelevant.
Here are a few quick pointers:
- Check that you have all the required files (especially the save0x files &
oot3dhax_installer.xml) in the correct directory. - Check that you have a working internet connection, since the installer downloads the payload from the internet.
- Check that you chose the correct system version in the installer.
- If all else fails, try wiping the OoT3D save data. Again, the installer won't do this for you.