Hacking Delete A9LH without NAND dump?

[Keylogger]

Hello,

I can't find my old 3DS NAND backups, the only one I have is my A9LH NAND backup, can I restore it and delete A9LH after the restore?

 

[Just Passing By]

Hello,

I can't find my old 3DS NAND backups, the only one I have is my A9LH NAND backup, can I restore it and delete A9LH after the restore?

You can't delete a9lh. If you want to get rid of a9lh for whatever reason, you need a dump pre-a9lh. I'm not sure if there's any other way.

 

[Manuel9181]

If you don't have a pre-a9lh nand backup somewhere on your pc but you still have an emunand installed on your sd, you should (I'm not totally sure of that) downgrade your emunand to 9.2, backup it with decrypt9 and then flash it on your sysNand (always using decrypt9, not the arm9loaderhax.3dsx). The downgrade process is just to keep your console on a exploitable firmware but if you don't care you can skip that step.

 

[Columbo2811]

Would it brick if you installed sysupdater cia and downgraded to 9.2?

 

[Just Passing By]

Would it brick if you installed sysupdater cia and downgraded to 9.2?

You can't install cias like that after 9.2.. so no because its impossible to even downgrade like that.

 

[Columbo2811]

You can't install cias like that before 9.2.. so no because its impossible to even downgrade like that.

Yes you could

 

[Just Passing By]

Yes you could

No you can't. You'll have to prove it to me and in my previous post I said before 9.2, I meant after sorry. And you'll have to be clearer, a9lh or not?

 

[DjoeN]

If you have a 10.x emunand:
Install sysupdater.cia in emunand (preffered is to run HBL from emunand, then run sysupdater.3dsx)
downgrade your Emunand to 9.2 and make a backup
Flash emunand 9.2 to sysnand with Decrypt9

 

[pre10c]

he can just restore his emunand no matter what and downgrade sysnand no?

 

[Manuel9181]

he can just restore his emunand no matter what and downgrade sysnand no?

What's the point to risk to downgrade a sysNand (that also required ninjhax/oothax) when you can do it safely and free on your emuNand?

 

[DjoeN]

he can just restore his emunand no matter what and downgrade sysnand no?

Yes he can, but he needs to be sure he has an entrypoint to run HBL and then downgrade.
It's easier and more safe to perform the downgrade in emunand.

[EDIT]
Ninja'd

 

[Manuel9181]

If you have a 10.x emunand:
Install sysupdater.cia in emunand (preffered is to run HBL from emunand, then run sysupdater.3dsx)
downgrade your Emunand to 9.2 and make a backup
Flash emunand 9.2 to sysnand with Decrypt9

You have just repeated what I said 20 mins ago

 

[DjoeN]

You have just repeated what I said 20 mins ago

must have overlooked that one post.

 

[YamiZee]

I'm guessing if there's a demand for it then it's possible to create a a9lh uninstaller.

 

[Ronhero]

I'm guessing if there's a demand for it then it's possible to create a a9lh uninstaller.

Call it disarm9

I thought I remember one of the devs explaining to me it was possible with the help of d9

 

[zoogie]

I'm guessing if there's a demand for it then it's possible to create a a9lh uninstaller.

Well it's basically just flashing the old nand back which D9 can already do.
Of course if someone lost their old nand backup, this could be really useful. Should be a lot faster too of course.

 

[astronautlevel]

Well it's basically just flashing the old nand back which D9 can already do.
Of course if someone lost their old nand backup, this could be really useful. Should be a lot faster too of course.

Really you should only need to flash the FIRM0/1 partitions.

 

[Ronhero]

Really you should only need to flash the FIRM0/1 partitions.

They are not console specific so that should work. I would run sysupdater to reinstall 9.2 though

 

[astronautlevel]

They are not console specific so that should work. I would run sysupdater to reinstall 9.2 though

I was under the impression that the firm0/1 partition was console specific, but I could be wrong.

I may dump my firm0/1 partitions on my o3ds and my 2ds (on an EmuNAND w/o a9lh) to compare them.

 

[daxtsu]

I was under the impression that the firm0/1 partition was console specific, but I could be wrong.

I may dump my firm0/1 partitions on my o3ds and my 2ds (on an EmuNAND w/o a9lh) to compare them.

As far as I know, they're only encrypted with console-specific xorpads, but the decrypted contents should be the same across 3DS models (e.g. 2DS should match o3DS, and all N3DSes should match each other, but not necessarily o3DS).