What is the full system version for the 10.4 JPN n3ds? I'm trying to get to the homebrew launcher after downgrading from 11.2 to 10.4, but GenHax needs the full system version and I can't see it from the system settings.
Edit: Just found the version numbers here:
https://www.nintendo.co.jp/support/3ds/system_update/changelog.html
Edit2: Turns out I didn't even need that? I was able to boot into HB after downgrading the system from 11.2 to 10.4 with selecting version 11.2.0.35-JPN on GenHax. It wasn't working for me before, but it just did now. Neat.