Tutorial Simple Guide to Downgrading your 3DS

[kyumin2lee]

Every time I press Y to downgrade I get 'Failed to get CIA file info!'. Any ideas?

 

[PF2M]

3 or 4 CIAs into installation, I was interrupted by a black error screen in the regular 3DS font saying something like:

"An error has occurred. Please hold the POWER button and try again later. If the problem continues, please contact help.nintendo.net for more information."

After that, I got a black screen that I don't think Recovery Mode works on. What should I do?

I tried:
Going into Recovery Mode (didn't seem to work)
Removing the SD and trying again (didn't seem to work)
Adding a blank SD (didn't work)

I'm on O3DS 10.3 with Menuhax.

 

[Ldaz]

Can only boot with sd card unplugged.
What do I do to have it boot with sd card plugged in.

 

[Genm1]

My sysupdater show the message for the 3ds users to not use it but i cant downgrade because it freezes HELP

 

[wally92]

I don't know if this helps anyone but...
I successfully downgraded to 9.2 and can run Gateway! So, to help others along, I thought I'd share the sha1 hash of the zip file I used.

filename: 9.2.0-20U(Full).zip
sha1sum: ccc272c495a84aa49f8db2da6072a79a73053e19

Hopefully this helps people who are nervous if they grabbed the right file. Maybe we should make a pastebin/list of known hashes that work?

was yours a N3DS?

 

[Hypnotizing]

https://gbatemp.net/threads/tutoria...ngrading-your-3ds.407888/page-10#post-5916864

Thanks , worked like a charm

 

[Genm1]

I'm still stuck on the (A) Update (Y) downgrade screen.... is there suppose to be another screen? when you click y

I have your same problem

 

[RedHat]

was yours a N3DS?

No, sorry. It was an o3ds XL

 

[cvskid]

Hello!
In recent days, there have been many developments within the 3DS homebrew community, with one of them being kernel access! With this, we now have a way to downgrade 3DSs and do whatever we want with kernel on >=9.3 3DSs. What's that? You want to downgrade? Well then, here's how...

PLEASE NOTE: JP N3DS Users, you'll need to remove the 000400102002CA00 in order to not get bricked! Not sure if other regions need to do this as well.

ALSO NOTE: Note: So far NO ONE HAS BRICKED THEIR 3DS FROM THIS. HOWEVER, I AM STILL NOT RESPONSIBLE IF YOUR 3DS BRICKS. If it does, I'm sorry, but it is NOT my fault.

Before beginning, remove any DNSs (like Tubehax) that you may have on your 3DS. This can interfere with the downgrading process. You may also want to back up your SD card juuuust in case...

1. Grab the sysUpdater app from here and place it into the '3ds' folder of your SD card.
2. Make a folder called 'updates' on the root of your SD card.
3. Place all of the CIAs for the update you wish to downgrade to into the folder. (I cannot link these for legal purposes. Sorry!)
4. Eject your SD card, put it into your 3DS, and boot.
5. Open up the Homebrew Launcher in your entrypoint of choice and start the sysUpdater app.
6. If everything goes well, you should have some options. Since we're downgrading, you can go ahead and press the Y button.
7. Wait and DO NOT touch anything. The app will tell you when it is done. (It took me less than 5 minutes)
   
8. Once the app prompts you that it is done, wait. It will reboot automatically.
9. Bite your fingernails in suspense. If everything goes correct...
10. Your 3DS will be downgraded!

COMMON PROBLEMS:

Issue: The app freezes at a certain step!
Solution: Try a different entrypoint. I was using Ironhax and got this problem, so I switched to OoT3DHax and it worked.

Issue: The prompt comes on screen, but nothing happens when I press a button!
Solution: Either wait a few moments or reboot the system and try again.

Issue: I downgraded, but my 3DS screen is completely black upon reboot!
Solution: Try removing the SD card, or you can reboot into recovery mode. To do this, hold A+R+L+Up as your 3DS turns on.

(please recommend any other issues and solutions to add here please!)
​

CREDITS:

• @Steveice10, @TuxSH, @julian20, @mid-kid, @delebile, and @MassExplosion213 and @motezazer for working on memchunkhax2.
• profi200 for sysUpdater, and @TuxSH for getting it to work for properly downgrading.
  
• @JustPingo for various research efforts and for the upcoming KTM, a safer way to do this.

In my case i was going to use this to upgrade from a gateway 3ds downgraded 4.2u sysnand to 9.2u sysnand. I am using a retail cart of cubic ninja to load homebrew launcher and from there load sysupdater. Once i load up sysupdater before i press either the upgrade or downgrade buttons there is a error message,

#3 : Map SlabHeap in userland...
ERROR : Can't create allocating thread.
Failure!

 

[JustAKirby]

turn off your console.

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


i will pm you the cias

Could you pm them to me too please?

 

[demonotaku]

YES Works on my Persona Q 3ds

 

[wally92]

No, sorry. It was an o3ds XL

can you pm me the link to the cia please.. I cant find them anywhere I just have pingos..

 

[Harvest God]

Should we shut off our 3ds if the screen is still stuck on the Arm11 Kernel Exploit screen?

 

[Hypnotizing]

Should we shut off our 3ds if the screen is still stuck on the Arm11 Kernel Exploit screen?

I had that problem , turning the wifi on fixed it for me.

 

[Mitsuoki]

Can confirm works on 2DS running latest firmware, downgraded to 9.2.0-20U

 

[Alex Spady]

What I did was:
Wait for black screen boot
Take out SD card and get error message
Press power button to get the power off screen to show up
Press HOME to exit
Put SD card back in
Do "Browserhax"
Profit?

 

[Ldaz]

Can't boot with sd card but can without it do i need to format it?

 

[MiniBonsai]

I need the CIA files too, version 10.3.0-23 E pm me please

 

[Zenith]

Works great with menuhax. I could not however use it with ironhax. Worked for me good luck (3ds xl now on 9.2.0-20u

 

[Deleted User]

Alright so I screwed up and never deleted 000400102002CA00 on my Japanese o3DS downgrade seemed to go fine. However now I boot to a black screen regardless of SD card and can't use recovery mode. Is my 3DS just done for?