So I have an old 3DSXL, version 7.2.0 - 12U. No flash cart, cubic ninja, or zelda. I followed this thread:
https://gbatemp.net/threads/tutorial-installing-rxtools-custom-firmware-3ds-and-2ds.390867/
to a "T". I've accessed rxTools and injected FBI (all the way to step 4a, I even separated the...