See https://github.com/Plailect/Guide/wiki/Hardmod-Downgrade

 

[vb_encryption_vb]

@DarkFlare69 I've seen various reports of people using different versions of the DLL file that is supplied on the first page, I tried about 3 before I got the correct one, also I left it right in the directory with the files.

 

[Manuel9181]

Mario is red,
Sonic is blue,
Without an hardmod can I do it too?

 

[chaosrunner]

Mario is red,
Sonic is blue,
Without an hardmod can I do it too?

YES BUT IF IT BRICKS UR SCREWED

 

[laguillo]

10.5.0-28J downgrade all ok THX

 

[Chelsea_Fantasy]

Do not ask if you can achieve this without a hardmod, you can't.

Yes, you can do it if you do not have a hard-mod, just hard mod your 3DS then fellow the tutorial.

Now, without jokes, it worked for me
Updated from 4.5 to 10.5 then DG using this method to 10.2 then downgraded to 9.2 then re-injected my original 4.5 NAND
yes, all was for science!

 

[piratesephiroth]

Mario is red,
Sonic is blue,
Without an hardmod can I do it too?

If you have a way to dump/write your NAND on fw 10.4/10.5 without a hardware mod, then sure, go for it.

 

[Plailect]

I'm with a N3DS Bricked, tryied downgrade from 10.3 but put the O3DS cias. Now i'm trying a hardmod to try recover from the brick,
But i'm getting problems with my SD Card Reader, the thing doen'st show in my windows.

I've seeing that guy tryied, but i'll try to.

It does not work.

10.5.0-28J downgrade all ok THX

What 3DS do you have? Old or new?

 

[KipMudz]

Reporting a successful downgrade from 10.5U to 10.2U then downgraded again to 9.2U. The only problem that I encountered is I am unable to install menuhax after the 10.2 downgrade. Perhaps, it is a payload incompatibility after the 10.2 downgrade. Good thing I have OoT 3D and used OoT3dhax instead for 9.2 downgrade. I am unable to flash the NAND chip with my laptop's card reader but still able to flash it with my very old card reader. The speed was 1MB/s even I use all the DAT lines but at least, it can flash the chip.

Here's some photos:

 

[atkfromabove]

I wish it was, its in 10.4 thats why im asking. 10.3 is the nand.bin backed up.

How did you dump your nand on 10.3 without a hardmod?

 

[Ninoh-FOX]

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>start.bat

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>3DSFirm.exe -d nand.bin f
irm0.bin firm1.bin

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>ctrtool.exe --contents=co
ntent1 firmoriginal.cia

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>rename content1* content1


C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>ctrtool.exe --contents=co
ntent2 firmnuevo.cia

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>rename content2* content2


C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>ctrtool.exe --exefsdir=ex
efsoriginal content1

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>ctrtool.exe --exefsdir=ex
efsnuevo content2

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>xor firm0.bin ./exefsorig
inal/firm.bin

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>xor firm0.bin.out ./exefs
nuevo/firm.bin

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>xor firm1.bin ./exefsorig
inal/firm.bin

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>xor firm1.bin.out ./exefs
nuevo/firm.bin

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>rename firm0.bin.out.out
firm0nuevo.bin
The system cannot find the file specified.

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>rename firm1.bin.out.out
firm1nuevo.bin
The system cannot find the file specified.

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>3DSFirm.exe -i nand.bin f
irm0nuevo.bin firm1nuevo.bin

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>del content*

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>del *.out
Could Not Find C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm\*.out

C:\Users\Adam\Downloads\10.4 & 10.5 Downgrade\autofirm>pause
Press any key to continue . . .

This is my error

Try run the bat with ther directories: C:\Users\Adam\Downloads\Downgrade\autofirm

Maybe "10.4 & 10.5" is the wrong.

 

[119880114]

question

I can use autofirmpack this in other firmversion？

only support 10.4-10.5？

sorry my bad english

 

[Ninoh-FOX]

question

I can use autofirmpack this in other firmversion？

only support 10.4-10.5？

sorry my bad english

Depends on what you want to do, this program does is inject fimr0 and firm1 in nand, which could use it for anything.

 

[simon66]

Quick question, if I have a NAND backed up and I somehow screw up a system using sysUpdater, can I flash the NAND back into the unit and it will work again right? Also, is there a program that can verify if you have a valid backed up NAND? I'm going to try to downgrade 2 more consoles that I have.

 

[Plailect]

Quick question, if I have a NAND backed up and I somehow screw up a system using sysUpdater, can I flash the NAND back into the unit and it will work again right? Also, is there a program that can verify if you have a valid backed up NAND? I'm going to try to downgrade 2 more consoles that I have.

Yes.

The only way to know 100% that your NAND backup is good is to flash it, but I'd recommend taking 2 NAND backups and comparing their MD5s. If they're the same then they should be good.

 

[laguillo]

It does not work.


What 3DS do you have? Old or new?

Old 3DS XL Japan

 

[hojjat_modder]

O3DS - Hardmod
10.5.0-30U downgrade Successful THX

10.5U -> 10.2U -> 9.2U

 

[Lightyose]

How did you dump your nand on 10.3 without a hardmod?

When I was in 10.3 version i backed up my nand.bin with gateway ultra.

 

[piratesephiroth]

When I was in 10.3 version i backed up my nand.bin with gateway ultra.

you can't do that in any fw over 9.2

 

[Lightyose]

you can't do that in any fw over 9.2

Oh sorry i meant EmuNand9

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

Oh sorry i meant EmuNand9

W8 i think I backed up my downgraded version. (9.2)
(I dont remember well)

 

[piratesephiroth]

Oh sorry i meant EmuNand9

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


W8 i think I backed up my downgraded version. (9.2)
(I dont remember well)

I'm pretty sure even emunand9 can't do it.