Hacking Question Switching from SysNAND to EmuNAND

Maro · Apr 27, 2020

Hi, so I'm a noob in all this and I realized all this time I'm been running on SysNAND with my edited saves/cheats and so on.
I do have 90DNS setup and I do have a clean backup saved.
Now my question is it to late to try to switch to EmuNAND and if not what is the best way to do it?
I never created an EmuNAND partition to begin with, so I would have to do that as well.
Thanks in advance for any help.

gungunner · Apr 27, 2020

The cleanest way would be to backup your saves, restore the clean nand, and start from scratch creating the emunand, installing CFW, installing the sigpatches, reinstalling your games and restoring your saves.

If you use kosmos they have a guide here: switch.hombrew.guide
If you use atmosphere there's a guide here: nh-server.github.io

Maro · Apr 27, 2020

gungunner said:
The cleanest way would be to backup your saves, restore the clean nand, and start from scratch creating the emunand, installing CFW, installing the sigpatches, reinstalling your games and restoring your saves.

If you use kosmos they have a guide here: switch.hombrew.guide
If you use atmosphere there's a guide here: nh-server.github.io

Thank you for your quick reply.
Seems like a bit of a hassle, in the end if I don't really care about playing online can I just stay on SysNAND?

gungunner · Apr 27, 2020

Yes you can. The advantage of having an emuNAND is that you can have a clean sysnand to run OFW, buy games on the eshop, play online, etc, and use the emuNAND for pirated games and homebrew

DarkFlare69 · Apr 27, 2020

Maro said:
Seems like a bit of a hassle, in the end if I don't really care about playing online can I just stay on SysNAND?

If you don't care about being banned, then yes you can safely stay on sysNAND as long as you don't do anything that'll brick you. Generally, people prefer to not be banned even if they don't play online, but that's a decision you'll have to make. EmuNAND is safer (but still not guaranteed to stay not banned).

Maro · Apr 27, 2020

Thanks you guys, really good suggestions.
One more thing, can I move all the file from my SD card to my computer, format the same SD card, create the Emunand partition than just copy the files over after restoring SysNAND?

gungunner · Apr 27, 2020

If you want a faster method you could create the emuNAND before restoring the sysNAND. The emuNAND would already have the CFW and the games installed. But you need 32GB of free space on your SD card.
First backup your SD files to your PC.
Second format the SD with the 2 partitions
Third copy the files you backed up to the FAT32 partition of the SD (it's around 32GB smaller than what it was before)
Fourth create the emuNAND (it will have everything you had installed before)
Fifth restore the sysNAND

Maro · Apr 27, 2020

--------------------- MERGED ---------------------------

gungunner said:
If you want a faster method you could create the emuNAND before restoring the sysNAND. The emuNAND would already have the CFW and the games installed. But you need 32GB of free space on your SD card.
First backup your SD files to your PC.
Second format the SD with the 2 partitions
Third copy the files you backed up to the FAT32 partition of the SD (it's around 32GB smaller than what it was before)
Fourth create the emuNAND (it will have everything you had installed before)
Fifth restore the sysNAND

Wow thanks for the detailed response! really appreciated it.

This is so much better than having to install everything all over again.
after I do all this, I'm able to update my sysNAND to the latest firmware, while my emuNAND remains on 9.2 witch is what I currently have?
Also am I able to boot to emuNAND using fusee-primary payload instead of Hekate?

gungunner · Apr 27, 2020

Maro said:
after I do all this, I'm able to update my sysNAND to the latest firmware, while my emuNAND remains on 9.2 witch is what I currently have?

yes, the emunand and sysnand are independent

Maro said:
Also am I able to boot to emuNAND using fusee-primary payload instead of Hekate?

yes, you need a correct emummc.ini configuration. I don't know much about this since I use hekate

Maro · Apr 27, 2020

gungunner said:
yes, the emunand and sysnand are independent

yes, you need a correct emummc.ini configuration. I don't know much about this since I use hekate

Ok, thanks again for this great info!

S3thar · Apr 28, 2020

I'm in a similar position with a 'dirty' sysNAND wanting to create an emuMMC. Might be a silly question but: after restoring my older clean sysNAND from 8.0.2, and updating to latest firmware on nintendo's servers, will the switch reboot out of RCM and into Stock OFW? Or since it's already in AutoRCM it reboots into RCM again?

So would be a safe idea to create a new nand dump of the latest firmware then too? Since there will be a mismatch in version numbers on Nintendo's side if I ever backup to 8.0.2 again?

Maro · Apr 28, 2020

gungunner said:
If you want a faster method you could create the emuNAND before restoring the sysNAND. The emuNAND would already have the CFW and the games installed. But you need 32GB of free space on your SD card.
First backup your SD files to your PC.
Second format the SD with the 2 partitions
Third copy the files you backed up to the FAT32 partition of the SD (it's around 32GB smaller than what it was before)
Fourth create the emuNAND (it will have everything you had installed before)
Fifth restore the sysNAND

Hi gungunner, I followed your steps and created my emuNand, but did not restore syNand yet.
I launched into EmuNAND successfully, but when I try to launch any app or game I get "This software is not currently on the console. Please redownload the software to continue".
Any idea how to fix this?
I tried launching to CFW SysNAND where everything was working before, but I also get the same message and can't launch anythin.

gungunner · Apr 28, 2020

That's weird. You didn't do any change to SysNAND so everything should be the same. Are you using the same version of CFW you were using before?

Maro · Apr 28, 2020

gungunner said:
That's weird. You didn't do any change to SysNAND so everything should be the same. Are you using the same version of CFW you were using before?

Yeah I didn't change anything, I just created EmuMMC and copied everyhting back to the SD card.
I've read, that I would have to put the Nintendo folder in emuMMC/RAW1 for it to show all the games, but even when launching to CFW SysNAND my games are not woking.

gungunner · Apr 28, 2020

Did you have any games installed to system memory instead of the SD card? Those shouldn't have any issues.
Also try using the Fix Archive Bit function in Hekate.

Maro · Apr 28, 2020

gungunner said:
Did you have any games installed to system memory instead of the SD card? Those shouldn't have any issues.
Also try using the Fix Archive Bit function in Hekate.

I have two games installed on thee system and they work fine everything else is on the SD card.
I tried using the Fix Archive Bit, it showed that it fixed 333 files but still nothing works on CFW SysNand and EmuNand.
on CFW SysNand it shows that the games are installed I get the error message " the software was closed because an error occurred" Error Code: 2002-4000.
In EmuNand it just shows that the games are not installed at all.

gungunner · Apr 28, 2020

It's definitely an issue with the files on the SD card. The same error is mentioned here:
https://gbatemp.net/threads/how-to-fix-archive-bit-for-all-sd-files-and-folders.515258/

See if that method works.

Maro · Apr 28, 2020

gungunner said:
It's definitely an issue with the files on the SD card. The same error is mentioned here:
https://gbatemp.net/threads/how-to-fix-archive-bit-for-all-sd-files-and-folders.515258/

See if that method works.

So I already starting formating the SD card and just gonna try to run on SysNAND like it was before, if that doesn't work, will follow the guide you sent.
I will keep you posted, thanks again for all you help.

Maro · Apr 28, 2020

After formatting my card and restoring my backup to the SD card, everything is up and running again on CFW SysNAND.
I'm gonna forget about EmuMMC for now and just remain on SysNAND.
Thanks again for the help.

Hacking Question Switching from SysNAND to EmuNAND

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