In the end, does the System Menu CIA work on an Old 3DS or Not?
Can we avoid the unnecessary fuckup that is downgrading with all of its problems and still get the mset exploit?
Sorry, I already got lost in those 32 pages of misunderstanding and still don't have an answer, other than people reading one specific question and answering a completely different made up one.
No, it doesn't work on old3ds. tried it myself (9.2 sysnand), when trying to launch gateway via ds profile it just crashes the system to a black error screen "an error has occurred, power off etc etc".