REQUIRES
UNLINKED NANDS.
and water cups.

THE TUTORIAL

Spoiler: Only read if you are ready.

1. Download the lastest version of sysUpdater.
2. Transfer the software to your SD card, and install it on emuNAND with a CIA installer.
3. Download the CIA pack for a system version (e.g CIA pack for 9.2)

tip: if you want 7.0 and up, search on that iso site.

4. Make "updates" folder on the root of your SD
5. Insert ALL the CIAs on that folder.

make a backup of your emuNAND after this point.

6. Boot up your console, and enter your emuNAND.
7. Run sysUpdater.

BEFORE PRESSING ANY BUTTON:
If the version that you downloaded is LOWER than your actual, DOWNGRADE.
If the version that you downloaded is HIGHER than your actual, UPDATE.

7. The process should take up more or less 5 minutes, depending SD speed or the ammount of CIAs.

AFTER STARTING IT, DO NOT, NOT, AND NOT REMOVE YOUR SD CARD, NOR PRESS HOME BUTTON. BAD THINGS WILL HAPPEN IF YOU DO THIS.

8. Drink your water cups. Until it's complete.
9. Once it's done, WAIT 10 SECONDS OR BAD THINGS WILL HAPPEN
10. Back to your emuNAND.
11. Voilá.

 

[Baccabechoppin]

If the version that you downloaded is LOWER than your actual, UPGRADE.
If the version that you downloaded is HIGHER than your actual, DOWNGRADE.

Shouldn't you downgrade if your firmware is lower then the one you're on? Think a slight mistake was made here

 

[jjfro9]

Thanks for explaining these steps. This helped me out quite a bit. Only thing, my o3ds said I had to have my folder called "updates", not "update".

 

[Baccabechoppin]

Thanks for explaining these steps. This helped me out quite a bit. Only thing, my o3ds said I had to have my folder called "updates", not "update".

That's because that's what the folder is meant to be named, OP has a few errors in the tutorial (See my post above for another one).

 

[ShizzleMyDizzle]

Can I directly downgrade from 10.3 O3ds to 4.5 because 9.2 has so much poor download speed

 

[Nirmonculus]

I guess it's time to move to 9.2 from 4.5.
Thanks, I will try this out. Any suggestions what hbl entry point I would use on 4.5? Thanks!

 

[Pokéidiot]

If you are doing it on EmuNAND, follow my guide. Else, use sliderhax (it has a low boot rate, so be patient) as an entrypoint. You can also downgrade to 4.5 with Gateway's Launcher.dat, but remove any cartidge before launching it.


EDIT:

There's no way to launch HBL on 9.0 and lower, but you actually can launch .dat homebrew from Spider (9.2 and lower web browser) Expolit. Just to remember, there is no .dat version of Smea HBL, nor a payload to boot HBL.

 

[Nirmonculus]

I updated my sysnand from 4.5 to 9.2 using the latest sysupdater. Thanks!

 

[Pokéidiot]

I updated my sysnand from 4.5 to 9.2 using the latest sysupdater. Thanks!

This tutorial teached how to update emuNAND... but ok :3

 

[Nirmonculus]

This tutorial teached how to update emuNAND... but ok :3

Haha yeah, but the diff was I only need to go to dev mode on sysnand and that's it.

This time, I'll try to update an emunand to 10.3. To try it out. XD

 

[AlBa]

Silly questions (?) before attempting a downgrade on my N3DSXL :
1. How to safely backup my savegames ?
2. How to keep a legit game that is already on my console ? (my Legend Of Zelda:ALBW legitely downloaded for instance)

 

[Chuu]

Can this be used to downgrade emunand from 10.5 to 10.3? accidentally upgraded :/

 

[Pokéidiot]

Can this be used to downgrade emunand from 10.5 to 10.3? accidentally upgraded :/

Yes. You will need the 10.3 cia package, btw.

 

[Deleted-376337]

So if something goes wrong with my EmuNAND and I have backup will I be able to restore it?

 

[Pokéidiot]

Yes. Use emuNAND Tool for backup/restore NANDs from SD.

 

[xile6]

I know this thread is old but search and came to this thread.

My question is this is used for downgrading or updating the emunand correct?

So if my emunand is on 11 can i downgrade it to 9.6 etc...?

 

[The Real Jdbye]

I know this thread is old but search and came to this thread.

My question is this is used for downgrading or updating the emunand correct?

So if my emunand is on 11 can i downgrade it to 9.6 etc...?

Correct, though I can't really see any reason why you would want to.