This is how I've been thinking about doing it. My question for you is, my clean sysnand backup is for 7.0.1 and I have the corresponding number of burnt fuses to match. In this case, I would leave my sysnand alone and create 2 emunands:
1) Emunand 1 - this is my legit Emunand. Can I use ChoiDujour to update it to 8.1.0 so I can play all of my purchased games online and using the eShop? Will a firmware and fuse mismatch cause a ban?
2) Emunand 2 - this is the one that stays at 7.0.1 and is used for RetroArch and never goes online.
The thing I haven't seen many people talk about is the firmware and fuse mismatch and whether or not it will cause issues. I'd rather not upgrade my sysnand to 8.1.0 so my fuses match if I can avoid it. I'm hoping someday there will be a warm boot option for 7.x though that may be dreaming...
I said in another thread, it doesn’t seem sensible to do this as eventually Nintendo may find a way to detect the OS is being ran from SD card rather than NAND, and you’d be banned before you could fix it.
If you want online risk free, then update sys nand without autoRCM, then have emuMMC for everything else. No way they can cross








