Hoping to get some clear answers. I did search this out, but some of the posts on the net contradict each other. I have: New3DS running 9.0.0-20U FW emuNAND with 9.5.0-23U Gateway Red + Blue SKY3DS ReiNAND And a valid/working eShop account I’d like to be able to update the SysyNAND to 10.2.0-28U so I can participate in making some CryptoFixes for my purchased eShop titles. My thought is to add in a HardMod, backup my current 9.0.0-20U SysNAND, upgrade the SysNAND to 10.2.0-28U and buy some >9.6 required FW eShops Then make a backup of the SysNAND with the HardMod and downgrade back to 9.0 so I can again use my 9.5 emuNAND I can then use some of the NAND tools to extract the SysNAND:/data/<console-unique>/sysdata/0001000f/00000000 and use seedconv.exe to create a seeddb.bin for use with Cryptofix. Does this sound about right, or am I missing something major here?