https://gbatemp.net/threads/doubt-themehax-o3ds-sysnand-9-4.400788/#post-5757610eShop access. SysNand is your regular system version. EmuNand is a emulated version of it. I cannot brick my SysNand, i'll be in deep -. But, if I brick my EmuNand, I'll be okay if I have a backup; which I do.
Follow every steps of this post of mine. That's is all to it take.