St. GIGA

 According to 3dbrew, http://3dbrew.org/wiki/Nand/private/movable.sed, and https://www.3dbrew.org/wiki/Nandrw/sys/LocalFriendCodeSeed_B, the data for the local friendcode seed is copied to the movable.sed keyslot, which is updated when transferring or formatting. Since sighax will let us decrypt the 3DS firmware, we may be able to figure out what part of the transfer/format is usable to update the seed, which will allow us to change the seed, remove and fake the RSA it is needed for, and possibly unban a console.

According to https://techdrake.com/2016/11/here-are-some-legit-ways-to-get-unbanned-from-pokemon-sun-moon/, you can unban an error 002-0102 3ds via A: the method we know using 2 3ds, or B: use that page's method 2 which uses the movable.sed and a hex editor to unban NNID and LocalFriendCodeSeed via editing the seed in both locations. I think the 3dbrew research matches, but I am semi-positive it will work, but the source WAS gbatemp, at this link: http://gbatemp.net/threads/all-3-methods-to-get-unbanned-from-recent-ban-wave.450679/

I guess it's a blessing in disguise that my ambassador B9S 3ds's impact-related semi-recurring stuck pixels became stuck again, so therefore I have a reason not to turn it on due to ugliness, that and the ban wave. I also hid my friend code so nobody can see it, such as nintendo.