Homebrew My 3ds doesn't boot anymore

[Joeado123]

Hello,I did a big error when I watch a video for downgrading with 3dnus.By now I'm stuck with this error:
_________________________________________________________________________________-
An exception occured

Processor: ARM11 (core 1)
Exception type: prefetch abort (svcBreak)
Current process: pm (0000000000000000)

R0 00000000 R1 00000000
R2 00000000 R3 00000002
R4 00000002 R5 0010A9B8
R6 0010603F R7 00000006
R8 00106004 R9 0FFFFFD4
R10 00106028 R11 00000001
R12 00000000 SP 0FFFFFD0
LR 00100190 PC 00103838
CPSR 60000010 FPEXC 00001849

Stack dump:

0FFFFFD0: 07 00 00 00 70 63 10 00
0FFFFFD8: 9C 63 10 00 00 00 00 00
0FFFFFE0: 00 00 00 00 00 00 00 00
0FFFFFE8: 00 00 00 00 00 00 00 00
0FFFFFF0: 00 00 00 00 00 00 00 00
0FFFFFF8: 00 00 00 00 20 00 10 00

________________________________________________
Ok so I explained what error I did ( I want to mention that I don't have a nand backup).
1. I download the files for the update (the 11.2.0-35U on 3dnus).
2. (This is really stupid I know) I install the cia of the update with fbi.
3. My 2ds on 11.4.0.-37 worked afer the install so it seems ok but when I restart the error appear on boot.
Somebody could help me on this?
I can actually access to the luma chainloader and luma config menu but I can't access the home menu.
A big thanks for every helpers and have a good day.

 

[Joeado123]

I just tried to launche the 2ds without sd card and it won't boot. (I've installed b9strap).

 

[GameStepHD]

You must do a ctr transfer to 9.2 you lost all your saves

i had the same issue

ctr transfer to 9.2 then updateing has fixed it.

 

[Joeado123]

Wait? Does CTR transfer work in 11.4 ?
I know you probably can't give link but can I find the 9.2 version in 3ds.guide?
Thank you so much! I'm glad that people like you take their personnal time to help other peoples.
Do you know if a firm. app that can extract save exist or godmode9 can do that?

 

[GameStepHD]

Wait? Does CTR transfer work in 11.4 ?
I know you probably can't give link but can I find the 9.2 version in 3ds.guide?

yes

 

[Giodude]

Im sure you could just restore one of you many nand backups i know you made

 

[Joeado123]

Im sure you could just restore one of you many nand backups i know you made

Yes It could be a possibility if I was not as noob as that.

 

[Giodude]

Yes It could be a possibility if I was not as noob as that.

Are you an a9lh to b9s user or did you install cfw only when b9s became a thing?

 

[Joeado123]

Welll I used A9LH first but I changed for B9S because I wanted luma 8.0.

 

[Giodude]

Welll I used A9LH first but I changed for B9S because I wanted luma 8.0.

safectrtransfer makes a mandatory nand backup, regardless if you want one or not. See if you still have it.

 

[Joeado123]

Or I could use decript9 for doing so.

 

[Giodude]

Or I could use decript9 for doing so.

your 3ds is kaput, its' nand is corrupted. If a nand backup was made during that transfer you can fix it. Obviously dont backup your corrupted nand.

 

[Joeado123]

Fix what? My corrupted nand?

 

[Giodude]

Fix what? My corrupted nand?

nothing else here that is really in need of fixing.

 

[Joeado123]

Yes,sorry that's true.
Just one thing;
Is there a guide because i think it's better if i follow one.
And thanks for your help.It's really appreciate.

 

[godreborn]

a guide to recover your NAND? you don't really need one. just use godmode 9. press, I think it's home, to get a list of options one of which will be backup/restore NAND.

 

[Giodude]

Yes,sorry that's true.
Just one thing;
Is there a guide because i think it's better if i follow one.
And thanks for your help.It's really appreciate.

You dont need one. First tell me if you can find a nand.bin or something like it such as nand_min.bin anywhere on your 3ds sd card. then we'll go from there.

 

[Joeado123]

no there is nothing. I wanted to do a nand backup first but i forgot.

 

[Giodude]

when did you do the guide. What month of what year.

 

[Joeado123]

Oh no that's not what I mean. I mean that I would want to follow a guide for safe ctr transfer.
Sorry for the error I am french.

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I guess I can find by myself after all. I need to go good bye!