Hacking Restoring Clean NAND and setting up emuNAND

[_Pro_Man_]

Hello guys.

I just had a few quick questions before I did something and possibly made a mistake. I have a backup of my switch firmware on 5.1.0 before I installed any NSPs or ran any homebrew. I have the separate pieced nand.bin files, as well as the combined rawnand.bin file and boot0/boot1.bin files. The Switch had been offline for several months before I made the backup, and has never connected to the internet since doing anything CFW related. The current NAND version is 9.2.0 after updating using ChoiDujourNX. My question is, if I wanted to set up a clean NAND and then an emuNAND, would I have to:

1) make a backup of my current NAND with installed NSPs
2) create an emuNAND partition on my SD card
3) somehow store the current backed up NAND to this new partition (I assume using a similar method to restoring the clean NAND but instead choosing an emuNAND option)
3) copy the current Nintendo folder on my SD card to where the emuNAND will be reading from
4) restore clean NAND
5) update to the latest software for online play on newly restored clean NAND

In the way that I view it in my head is that I don't have to reinstall any NSPs to the new emuNAND if I'm fully restoring the current NAND backup and then transferring the Nintendo folder. But I just wanted to confirm all of these steps/if my thinking is correct. One of the issues that I envisioned was that I originally had a Nintendo Account linked to my account before I decided to remove any WiFi connections entirely before using CFW. Would I encounter any issues with this? Another thing is that I have autoRCM enabled. I currently can't find my jig so I would prefer to keep this enabled. I know that I won't be able to boot without having a way to inject a payload then for either of the NANDs. I assume it would be better if I was to not have autoRCM setup to greater avoid detection of a ban, but I haven't heard of any reports of people being detected for this. If there's anything that I am missing or issues that you may see, please let me know.

 

[Draxzelex]

Hello guys.

I just had a few quick questions before I did something and possibly made a mistake. I have a backup of my switch firmware on 5.1.0 before I installed any NSPs or ran any homebrew. I have the separate pieced nand.bin files, as well as the combined rawnand.bin file and boot0/boot1.bin files. The Switch had been offline for several months before I made the backup, and has never connected to the internet since doing anything CFW related. The current NAND version is 9.2.0 after updating using ChoiDujourNX. My question is, if I wanted to set up a clean NAND and then an emuNAND, would I have to:

1) make a backup of my current NAND with installed NSPs
2) create an emuNAND partition on my SD card
3) somehow store the current backed up NAND to this new partition (I assume using a similar method to restoring the clean NAND but instead choosing an emuNAND option)
3) copy the current Nintendo folder on my SD card to where the emuNAND will be reading from
4) restore clean NAND
5) update to the latest software for online play on newly restored clean NAND

In the way that I view it in my head is that I don't have to reinstall any NSPs to the new emuNAND if I'm fully restoring the current NAND backup and then transferring the Nintendo folder. But I just wanted to confirm all of these steps/if my thinking is correct. One of the issues that I envisioned was that I originally had a Nintendo Account linked to my account before I decided to remove any WiFi connections entirely before using CFW. Would I encounter any issues with this? Another thing is that I have autoRCM enabled. I currently can't find my jig so I would prefer to keep this enabled. I know that I won't be able to boot without having a way to inject a payload then for either of the NANDs. I assume it would be better if I was to not have autoRCM setup to greater avoid detection of a ban, but I haven't heard of any reports of people being detected for this. If there's anything that I am missing or issues that you may see, please let me know.

Initially making emuMMC is just a copy of sysMMC so step 3 is already performed in step 2 by the virtue of creating it. Also you should keep a Nintendo Account linked as certain games will not work without it.

 

[_Pro_Man_]

Initially making emuMMC is just a copy of sysMMC so step 3 is already performed in step 2 by the virtue of creating it. Also you should keep a Nintendo Account linked as certain games will not work without it.

Right makes sense. As I've read over some more things regarding emuMMC some of my questions seem sort of silly. After partitioning for the emuMMC partition, I would just make a backup of the sysMMC in the process fully setting up emuMMC. And then this backup would be written to the emuMMC partition (meaning I have to keep the backup files on the SD card)? Or is the backup just in case something goes wrong and it's just directly copying from sysMMC to emuMMC? In either case, once this is all done I wouldn't have to reinstall NSPs or saves on my emuMMC as it's a direct copy from my previous sysMMC correct? Then I would be fine to restore the clean backup to my sysMMC.

I've seen some people say that emuMMC reads from different folders (for the main Nintendo folder) but is this something that is setup automatically? Or do I have to rename the previous Nintendo folder to something else (I've seen some people say the folder name is emuMMC). So if I wanted to retain my installed NSPs and saves, I assume I just transfer the contents in the Nintendo folder to the emuMMC folder.

 

[Draxzelex]

Right makes sense. As I've read over some more things regarding emuMMC some of my questions seem sort of silly. After partitioning for the emuMMC partition, I would just make a backup of the sysMMC in the process fully setting up emuMMC. And then this backup would be written to the emuMMC partition (meaning I have to keep the backup files on the SD card)? Or is the backup just in case something goes wrong and it's just directly copying from sysMMC to emuMMC? In either case, once this is all done I wouldn't have to reinstall NSPs or saves on my emuMMC as it's a direct copy from my previous sysMMC correct? Then I would be fine to restore the clean backup to my sysMMC.

I've seen some people say that emuMMC reads from different folders (for the main Nintendo folder) but is this something that is setup automatically? Or do I have to rename the previous Nintendo folder to something else (I've seen some people say the folder name is emuMMC). So if I wanted to retain my installed NSPs and saves, I assume I just transfer the contents in the Nintendo folder to the emuMMC folder.

The backup is just in case sysMMC is corrupted. As I said before, emuMMC is initially just a 1:1 copy of sysMMC.

And you don't have to reinstall your games as long as you make emuMMC read the Nintendo folder where the games were installed to. What I mean is emuMMC has its own Nintendo folder and if you make a copy of the Nintendo folder used for sysMMC then move that copy to where emuMMC expects it to be, emuMMC will read whatever games are installed in that folder.