View attachment 77611
So I was able to bypass a 022-2812 error using a file from an unbanned 3DS, not by injecting it but by creating a custom server to proxy to account.nintendo.net with the header data modified to use the easily-dumpable data of the unbanned one. I got a multi-subdomain setup working and would be okay with hosting more, so if anyone with a donor 3DS wants to try this method feel free to PM me. (Probably Old 3DS users only
for now as I haven't decrypted the New 3DS applet yet, though I'd be okay with looking into it if there's enough demand)