Tutorial Cleaning up NAND to play online safely

lordelan

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Well sadly I only have the rawnand.bin from my original backup (before any CFW stuff happened) and not the BOOT0 and BOOT1 files. So I can't restore that backup :(
That shouldn't be a problem. You could downgrade with daybreak to the FW u have the backup from (of course without connecting to the internet), then dump your BOOT0 & 1 and then proceed.
 

lordelan

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OrGoN3

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If you want to play online, it is highly recommended that you restore a sysMMC backup from before you dirtied your sysMMC.

If you do not have a clean sysMMC backup to restore, then there is a chance that you will not be able to play safely online without getting banned. However, you can try using an automated tool like Haku33 to clean your sysMMC. This is not recommended, since it might cause a mismatch between what's on your sysMMC and what's on Nintendo's servers, but without a clean sysMMC backup, this may be your only option.

https://github.com/StarDustCFW/Haku33
Curious. Why are you still recommending Haku33 when TegraExplorer's SystemWipe script exists?
 

AlcuZan

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lordelan

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I used this and it worked: https://github.com/shchmue/FVI
So I'll downgrade to 7.0.1 now, dump BOOT0 and BOOT1, restore my OG backup, then follow your guide :)
Oh good find! I didn't even know that this existed although the tools I named probably would have had that function as well but I'm glad you found your FW version. Good luck. Should be good to go now.
 
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AlcuZan

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That shouldn't be a problem. You could downgrade with daybreak to the FW u have the backup from (of course without connecting to the internet), then dump your BOOT0 & 1 and then proceed.
Wanted to thank you for that tip. It worked flawlessly and so far I am able to play Pokémon Unite without any problems :) thanks for the guide!

Edit: So there is one VERY IMPORTANT detail that one should be aware about - if you boot into Stock SysMMC from hekate and have AutoRCM enabled and then perform a system update the usual way, AutoRCM will be turned off! So to boot into EmuMMC again, you have to manually bring your Switch into RCM mode again! I wasn't aware of this and thus a little shocked.
 
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lordelan

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Edit: So there is one VERY IMPORTANT detail that one should be aware about - if you boot into Stock SysMMC from hekate and have AutoRCM enabled and then perform a system update the usual way, AutoRCM will be turned off! So to boot into EmuMMC again, you have to manually bring your Switch into RCM mode again! I wasn't aware of this and thus a little shocked.
Yup, while homebrew solutions like Daybreak or ChoiDujourNX prevent the AutoRCM flag, an official FW update from Nintendo always overwrites (and thus resets) it.
However, it's not a big deal imho. Worst thing that might happen is that you burn too many fuses that way but since you can always use hekate to boot either sysNAND or emuNAND and since it's unlikely there will ever be a dongle-less software coldboot that needs a low amount of burnt fuses, it doesn't really matter. :)
 
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IDZero

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Good day everyone, new member here. I've a quick question related to restoring my switch completely back to stock. I have a clean nand backup that i already used. Should i use haku33 now to erase every dirty file that can potentially ban this switch? Always stayed offline till a certain point where i used internet for homebrew related stuff only. This while incognito was already active. What to do now as i want to donate this switch to someone. As you can clearly tell im a noob @ this stuff. Any help is welcome. Thanks in advance.

p.s. After restoring clean nand i booted normally into ofw and everyhting seemed fine untill ive been asked to erase my sd card? Is this normal after restoring nand? What should i do? At this point i shut my switch off.
 
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blackegg

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i think i always turned on the incognito mode, but its saver to think my tinfoil activities can detected by them
thankyou
 

Violaesse

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Hi, I am sorry to bother you, I think something similar has been asked in different questions, but I'd like your opinion if you can. My switch has never been online since it was modified, but it did before. I always used CFW with the EmuNAND, except once by mistake, I booted using SysNAND, I recognized it immediately (empty homescreen) and shut the console down, but I don't know if this might have been logged. I never used autoRCM and I DO have a clean NAND backup. Do you suggest using your guide or restoring the NAND? Also is there anything else I should do to clean it (except for removing/cleaning the SD card of course)? Thanks really!

EDIT: I never used Incognito, thinking I didn't need it if I stayed offline all the time, I don't know if it was a mistake though.
 
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Shulia

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I found a guy selling a switch that has had backup games installed in the sysnand. It has never went online. Does this work with it?
I mean, will I be able to play online after those steps?
 

Zkajavier

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Hi, I am sorry to bother you, I think something similar has been asked in different questions, but I'd like your opinion if you can. My switch has never been online since it was modified, but it did before. I always used CFW with the EmuNAND, except once by mistake, I booted using SysNAND, I recognized it immediately (empty homescreen) and shut the console down, but I don't know if this might have been logged. I never used autoRCM and I DO have a clean NAND backup. Do you suggest using your guide or restoring the NAND? Also is there anything else I should do to clean it (except for removing/cleaning the SD card of course)? Thanks really!

EDIT: I never used Incognito, thinking I didn't need it if I stayed offline all the time, I don't know if it was a mistake though.

Restoring the clean nand backup is your best choice. And no, it was not a mistake, but your nand is dirty and should never go online unless you restore a backup or clean it beforehand.

I found a guy selling a switch that has had backup games installed in the sysnand. It has never went online. Does this work with it?
I mean, will I be able to play online after those steps?
I was in the exact same position as you a couple years ago and I followed the steps of this guide and I use the sysnand for legit games a lot, never been banned. So yes.
 

lordelan

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I found a guy selling a switch that has had backup games installed in the sysnand. It has never went online. Does this work with it?
I mean, will I be able to play online after those steps?
If it really NEVER went online then sure, you will be save with this guide since Nintendo doesn't have any logs snapshot of that device yet.
 
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