Delete A9LH without NAND dump?

Discussion in '3DS - Flashcards & Custom Firmwares' started by Keylogger, Mar 21, 2016.

  1. Keylogger
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    Keylogger GBAtemp Advanced Maniac

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    May 3, 2006
    France
    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?
     
  2. Just Passing By

    Just Passing By GBAtemp Advanced Maniac

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    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.
     
    Keylogger likes this.
  3. Manuel9181

    Manuel9181 GBAtemp Prosecutor

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    May 26, 2015
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    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.
     
    astronautlevel likes this.
  4. Columbo2811

    Columbo2811 GBAtemp Maniac

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    Jul 19, 2015
    Would it brick if you installed sysupdater cia and downgraded to 9.2?
     
  5. Just Passing By

    Just Passing By GBAtemp Advanced Maniac

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    You can't install cias like that after 9.2.. so no because its impossible to even downgrade like that.
     
    Last edited by Just Passing By, Mar 21, 2016
  6. Columbo2811

    Columbo2811 GBAtemp Maniac

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    Jul 19, 2015
    Yes you could
     
  7. Just Passing By

    Just Passing By GBAtemp Advanced Maniac

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    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?
     
  8. DjoeN

    DjoeN Captain Haddock!

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    Oct 21, 2005
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    Somewhere in this potatoland!
    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
     
    Arkansaw likes this.
  9. pre10c

    pre10c GBAtemp Fan

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    Jan 15, 2016
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    he can just restore his emunand no matter what and downgrade sysnand no?
     
  10. Manuel9181

    Manuel9181 GBAtemp Prosecutor

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    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?
     
  11. DjoeN

    DjoeN Captain Haddock!

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    Somewhere in this potatoland!
    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 :D
     
  12. Manuel9181

    Manuel9181 GBAtemp Prosecutor

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    You have just repeated what I said 20 mins ago :rofl2:
     
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  13. DjoeN

    DjoeN Captain Haddock!

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    Somewhere in this potatoland!
    :wacko: must have overlooked that one post. B-)
     
    Manuel9181 likes this.
  14. YamiZee

    YamiZee GBAtemp Regular

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    Aug 18, 2013
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    I'm guessing if there's a demand for it then it's possible to create a a9lh uninstaller.
     
  15. Ronhero

    Ronhero Too Weird to Live, Too Rare to Die

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    Call it disarm9

    I thought I remember one of the devs explaining to me it was possible with the help of d9
     
    zoogie likes this.
  16. zoogie

    zoogie playing around in the dsiware

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    Nov 30, 2014
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    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.
     
    Ronhero likes this.
  17. astronautlevel

    astronautlevel Cyberpunk Bartending Action!

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    That Nightly Site™
    Really you should only need to flash the FIRM0/1 partitions.
     
    Ronhero likes this.
  18. Ronhero

    Ronhero Too Weird to Live, Too Rare to Die

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

    astronautlevel Cyberpunk Bartending Action!

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    That Nightly Site™
    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.
     
  20. daxtsu

    daxtsu GBAtemp Guru

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    Jun 9, 2007
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    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).
     
    astronautlevel likes this.
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