Hacking Failed to mount CTRNAND after trying to unbrick 3ds.

Jamanie2140 · Dec 13, 2017

Okay so I bricked my 3ds xl two days ago after modding it and I kind of freaked out and deleted some of the files on the sd card for the console, but i did recover what i'd assume to be the most part of the files, but the things i've recovered arent in folders. I then used this tutorial to help me unbrick it using the first method. I put the sysnand.bin folders back into where they needed to be and I did everything he said to do after that, but then when trying to reboot the system I get the error.

Please help buying another 3ds xl is the last thing I want to do and I don't think I can send it to Nintendo for repairs because it's modified.

(sorry for long read)

Natsuru · Dec 13, 2017

So to confirm a few things. You did successfully mod the system? (Install B9S)
What files did you delete?
What do you mean recover and how did you do this?
Do you have LumaCFW?

Kubas_inko · Dec 14, 2017

First. Do you have any nand backup? If so, restore it with Godmode9.

If not, do CTRTransfer via Godmode9. If that won't work use Decrypt9. If that won't work use Lazarus 3d.

Jamanie2140 · Dec 15, 2017

SirECK said:
So to confirm a few things. You did successfully mod the system? (Install B9S)
What files did you delete?
What do you mean recover and how did you do this?
Do you have LumaCFW?

yes i did mod it successfully
I basically deleted all files besides "Nintendo 3ds" and private.
I recovered the files using a program called recuva and it recovered some things just not inside their folders.
And I would believe that I do have luma cfw I mean i'm not entirely sure, I can load luma chainloader and before the system was bricked when i went into settings it said "sys" instead of "ver"

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

Kubas_inko said:
First. Do you have any nand backup? If so, restore it with Godmode9.

If not, do CTRTransfer via Godmode9. If that won't work use Decrypt9. If that won't work use Lazarus 3d.

I do have the sysnand files and when I try to recover them in godemode9 it says that it was successful, but after doing that I press start to reboot and it just gives me that error.

I also don't really know how to do ctrTranfer

Hunter · Dec 15, 2017

https://github.com/AuroraWright/Luma3DS/releases

download the 7z file
and place the boot.firm located inside the 7z on the root of your SD card

Natsuru · Dec 15, 2017

You shouldn't get that blue screen error if you removed the Luma or borked up the Nintendo 3DS/Private folders.
If you deleted the files and recovered them with Recuva then they are as good a gone.
The Nintendo 3DS folder and the Private folder inside consist of just games, apps and saved games. Nothing to cry over much.
Here is the big question.. Did you restore the recovered sysnand.bin from Recuva?
If yes, I hope you made a copy of it to your PC at one point, if not, do as Hunter says and put the latest Luma boot.firm on the SD card root for now and put the godmode9 payload in the Luma/Payloads folder
for now (make the folders if they don't exist) and remove the everything else. You should only have the boot.firm and Luma folder.
Try to get into GM9 and post back.

As for the CTRTransfer we will talk about it later if needed.
I also provide voice chat support over discord if you need it, time permitting.

Jamanie2140 · Dec 16, 2017

SirECK said:
You shouldn't get that blue screen error if you removed the Luma or borked up the Nintendo 3DS/Private folders.
If you deleted the files and recovered them with Recuva then they are as good a gone.
The Nintendo 3DS folder and the Private folder inside consist of just games, apps and saved games. Nothing to cry over much.
Here is the big question.. Did you restore the recovered sysnand.bin from Recuva?
If yes, I hope you made a copy of it to your PC at one point, if not, do as Hunter says and put the latest Luma boot.firm on the SD card root for now and put the godmode9 payload in the Luma/Payloads folder
for now (make the folders if they don't exist) and remove the everything else. You should only have the boot.firm and Luma folder.
Try to get into GM9 and post back.

As for the CTRTransfer we will talk about it later if needed.
I also provide voice chat support over discord if you need it, time permitting.

I actually didn't delete the nintendo 3ds and private folder and its stayed there this entire process so should I still delete it along with the other files that arent the luma folder and the boot.firm folder? or can i keep it to safe game saves and stuff? I'd be fine with deleting them as long as I can eventually unbrick the console again.

Also yes i did get the sysnand.bin file back from recuva.

I'm sorry for asking so many questions and I really appreciate the consistent help.

Natsuru · Dec 16, 2017

If you didn't delete the Nintendo 3DS folder and private folder don't, it's not needed. I assumed you also recovered it.
Make sure you can boot into godmod9 by holding start when powering on, if you have more then one payload in the luma/payloads a menu will come up and select godmode9.
You should at this point make a backup of the SD card just in case.
The sysnand.bin you recovered might have been corrupt and that why the system is how it is now.
As per my last post, at any time during the modding did you copy the SysNAND.bin to you PC?
If you want to try a program I use at work look up Active @ File Recovery. It has a way to look for files recuva doesn't. I did a test for a member sometime ago for something similar to your situation.
Long story short I copied 4 NAND backups to a SD card, erased them and recovered 3 of 4 successfully. I don't know if you know about flash memory technology but in short if you didn't write too much data to the SD card their might be a change to get a working copy back, long shot if you are using the stock 4GB SD card.
The program is not free but if you know where you can get things for free, look up Active @ Data Studio 10.5.
I can guide you through the recovery process.

If you don't want to try recovering the data again follow this guide.
In essence you are reinstalling the system files back.

https://3ds.guide/ctrtransfer

If this dosen't work post back.

Jamanie2140 · Dec 17, 2017

I copied the Sysnand to my computer after recovering it with Recuva. Also I'm not really sure what I am supposed to do.Do you want me to try to recover the files using that program? If so what do you want me to do with the files after? I tried using that guide but after choosing "transfer image to CTRNAND" it tells me that no valid destination was found. I'm really not sure what to do.

Kubas_inko · Dec 17, 2017

Jamanie2140 said:
I copied the Sysnand to my computer after recovering it with Recuva. Also I'm not really sure what I am supposed to do.Do you want me to try to recover the files using that program? If so what do you want me to do with the files after? I tried using that guide but after choosing "transfer image to CTRNAND" it tells me that no valid destination was found. I'm really not sure what to do.

Just follow the guide.
You should put your CTRTrasnfer.bin to some folder (idk which one) on your sd and do ctrtrasnfer with GM9. if that won't work, do Decrypt9.

Natsuru · Dec 17, 2017

Jamanie2140 said:
I copied the Sysnand to my computer after recovering it with Recuva. .

I meant the .bin after you finished modding the system
https://3ds.guide/finalizing-setup
Section VII - Backup Essential Files
Step 8
Please tell me you did step 8?

If you want to try to recover the SD card with the program I suggest you can try, If you get the files again try to restore it with GM9 and see what happens.
Otherwise just follow the guide but use Decryp9 instead https://github.com/d0k3/Decrypt9WIP/releases/tag/20170607
The process will be a little different.

Natsuru · Dec 20, 2017

@Jamanie2140 any update?

GizmoTheGreen · Dec 20, 2017

I think you screwed yourself over when you used recuva to get the sysnand backup...

recuva can only see the start and end of a file. if for any reason you made new files on the sdcard they could have ended up inside of the nand backup, so when you restored it who knows what random data was mixed in and what important files (or since sysnand is encrypted, it might all be garbage now, hence it failes to mount (ctranand))

You should have copied the sysnand backup before you deleted it from the sdcard. if any important files that are unique to your 3ds has been lost even a ctr-transfer won't save you. you should have never restored the recuva sysnand.bin

Kubas_inko · Dec 20, 2017

GizmoTheGreen said:
I think you screwed yourself over when you used recuva to get the sysnand backup...

recuva can only see the start and end of a file. if for any reason you made new files on the sdcard they could have ended up inside of the nand backup, so when you restored it who knows what random data was mixed in and what important files (or since sysnand is encrypted, it might all be garbage now, hence it failes to mount (ctranand))

You should have copied the sysnand backup before you deleted it from the sdcard. if any important files that are unique to your 3ds has been lost even a ctr-transfer won't save you. you should have never restored the recuva sysnand.bin

He can always do full CTRTransfer anyway.

GizmoTheGreen · Dec 21, 2017

Kubas_inko said:
He can always do full CTRTransfer anyway.

as far as I know if you totally wipe your sysnand those unique files will be lost forever since there's no way to recover/generate them.
a ctr transfer can only help with the other files that are part of the "OS", and move you up and down firmwares and in some cases recover from bricks.

Kubas_inko · Dec 21, 2017

GizmoTheGreen said:
as far as I know if you totally wipe your sysnand those unique files will be lost forever since there's no way to recover/generate them.
a ctr transfer can only help with the other files that are part of the "OS", and move you up and down firmwares and in some cases recover from bricks.

where has he stated, that he formated his sysnand?

GizmoTheGreen · Dec 21, 2017

Kubas_inko said:
where has he stated, that he formated his sysnand?

he restored a sysnand backup that was deleted and then recovered with Recuva. that's just as bad in case the file was damaged, since it's an encrypted file, once there's "garbage" data in there the whole decryption also returns garbage. it's possible his whole sysnand is random junk and he has no way to recover it. (which would be indicated by the fact godmode9 can't mount his CTR nand (the main partition?)

Kubas_inko · Dec 21, 2017

If I remember correctly, even after recovering someone else sysnand, you can still do CTRTransfer and repair it that way. I think that sysnand backup does not have any important files that can totally screw your 3ds (maybe you can flash blank .bin backup and still recover it with CTRTransfer). None-the-less, he can at least try CTRTransfer (with godmode9 or Decrypt 9 or do Lazarus 3DS script).

Jamanie2140 · May 13, 2022

[

Natsuru said:
@Jamanie2140 any update?

If anyone is interested like half a decade later

I got this issue fixed with a TON of help frome the "Nintendo homebrew" discord.

Google the name of the server and join it and search "by user:" and find "El stinko" (that's me) and scroll AALLL the way down through my 3ds assistance messages and you can follow the steps I made with help by all the wonderful people on that server who will help you if you run into a problem.

KleinesSinchen · May 13, 2022

Jamanie2140 said:
[

If anyone is interested like half a decade later

I got this issue fixed with a TON of help frome the "Nintendo homebrew" discord.

Google the name of the server and join it and search "by user:" and find "El stinko" (that's me) and scroll AALLL the way down through my 3ds assistance messages and you can follow the steps I made with help by all the wonderful people on that server who will help you if you run into a problem.

How about publishing the solution freely available in the forum... instead of hiding it behind some proprietary platform requiring a login for getting the information?

That said, glad you got it solved -- albeit late.

Most software/firware brick problems can be solved with CTRTransfer or the CTRTransfer Type D9 script.

Hacking Failed to mount CTRNAND after trying to unbrick 3ds.

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