Okay! test time:
1) Open decrypt9 after doing a TinyFormat or a full format in System Settings on the 2/3DS (MAKE A NAND BACKUP BEFORE)
2) Dump movable.sed and LocalFriendCodeSeed_B
3) with HxD compare movable.sed and LocalFriendCodeSeed_B to see if they match, if they don't just copy 0x8 to 0x7 110 from movable.sed to LocalFriendCodeSeed_B
4) Dump SecureInfo_A,
5) PUT THESE THREE FILES IN A SAFE PLACE FOR BACKUP REASONS. MAKE SURE THEY ARE CLEARLY LABELED!!!!
6) Hex edit SecureInfo_A and edit the serial number of your console (It will be in the 'Text' section, not the 'Hex' one)
7) Copy the modified SecureInfo_A, the edited LocalFriendCodeSeed_B, and a blank nnidsave.bin (it's just a dummy file, download it) onto the SD card of the banned 2/3DS
8) Inject the modified files using decrypt9
9) Restart your system
10) Attempt to access the online servers for a game
Just edited your guide marksteele
I tried this already, I did it correctly and I injected the edited LFCS_B but I'm still getting the Error: 002-0102
Can anyone just upload a legit LFCS_B file so I can inject it? Or any other way to unban? I just have one 3DS