Delete A9Lh+Luma 3ds on v11.2

Discussion in '3DS - Flashcards & Custom Firmwares' started by BlackSwordJon, Mar 4, 2017.

  1. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    Hello, recently i want to know i to remove completely a9lh on my 3ds?
     


  2. KunoichiZ

    KunoichiZ GBAtemp Guru

    Member
    8,085
    3,265
    Mar 16, 2012
    United States
    Why...?
     
  3. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    Jus
     
  4. Distrance

    Distrance 矢澤にこ

    Member
    1,146
    426
    Nov 23, 2008
    Finland
    If you have a pre-A9LH backup then restore a backup with Decrypt9 with the option that does NOT say (keep a9lh). This removed A9LH.

    Alternatively I think you can use SafeA9LHInstaller to uninstall it but don't quote me on that.
     
  5. el_gonz87

    el_gonz87 GBAtemp Advanced Maniac

    Member
    1,559
    929
    Aug 24, 2016
    United States
    Options:
    a) Use Decrypt9 to restore a pre-A9LH backup with the force option.

    or

    b) Do a ctr-transfer to 9.2 and use safeA9LHinstaller to uninstall.

    or

    c) Boot Luma with option "Patch SVC/service/archive/ARM9 access". Use sysDowngrader from HBL to downgrade to 9.2 using CIA pack. Then use safeA9LHinstaller to uninstall.

    Options a and c are best to keep your content with the system. If you simply want to return to stock firmware but still use the system as you do now.

    Please note, I don't recommend uninstalling A9LH. If you have an issue troubleshoot it first.
     
  6. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    I have a sysNand with no a9lh, is that ok?
     
  7. Lilith Valentine

    Lilith Valentine GBATemp's Wolfdog™ Cuddle lesbian derp

    Member
    20,072
    21,186
    Sep 13, 2009
    Antarctica
    Between insane and insecure
    Yes, just restore that without A9LH protection turned on using Decrypt9
     
  8. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    Imagine, i restore my 3ds (sysnand with no a9lh) with Hourglass option " Sysnand restore (keep a9lh)" does it brick my 3ds?
     
  9. Lilith Valentine

    Lilith Valentine GBATemp's Wolfdog™ Cuddle lesbian derp

    Member
    20,072
    21,186
    Sep 13, 2009
    Antarctica
    Between insane and insecure
    Using Hourglass9 to restore will not remove A9LH and it won't brick your system either. Unless you are using someone else's NAND for some reason.
     
  10. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    Also, can the company Of Nintendo patch the Luma+A9lh in the future?
     
  11. Lilith Valentine

    Lilith Valentine GBATemp's Wolfdog™ Cuddle lesbian derp

    Member
    20,072
    21,186
    Sep 13, 2009
    Antarctica
    Between insane and insecure
    Short answer: no.
    Long answer: Current CFWs have FIRM0/1 protection. Which basically protects the processes being exploited for A9LH. Which basically means that no matter what Nintendo throws at the system, those files simply won't be updated and A9LH will remain untouched.
    As well Nintendo will not create a targeted update to remove them because that update will brick New3DS's. The update would run a huge risk of bricking unhacked system as well. This was shown to happen when 3DS's were updated with GatewayCFW (which lacks FIRM0/1 protection.) Old3DS's updated and mostly worked, some reported strange bugs afterwards, but nothing officially proven. New3DS's just straight up bricked.
     
    Last edited by Lilith Valentine, Mar 4, 2017
  12. xppancho

    xppancho Member

    Newcomer
    16
    1
    Jan 8, 2015
    Cote d'Ivoire
  13. Distrance

    Distrance 矢澤にこ

    Member
    1,146
    426
    Nov 23, 2008
    Finland
    Shouldn't even recommend option B. Option B seems easiest if pre-A9LH backup does not exist, but ctr transfer breaks DS/DSi functionality and if you have no A9LH, you have no way of fixing it. Selling a 3DS or giving a 3DS to a friend that doesn't play DS/DSi games seems like a bad idea.
     
    BlackSwordJon likes this.
  14. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    If i want to update my 3ds firmware to 11.3, before that, do I have to update my luma 3ds updater?
     
  15. el_gonz87

    el_gonz87 GBAtemp Advanced Maniac

    Member
    1,559
    929
    Aug 24, 2016
    United States
    Ah yes, I forgot this can happen on some instances although I've done a CTRTransfer where it did not break TWL. I gues the appropriate thing would be to reinstall the TWL using the troubleshooting steps prior to uninstall.
     
    BlackSwordJon likes this.
  16. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    If i want to update my 3ds firmware to 11.3, before that, do I have to update my luma 3ds updater?
     
  17. el_gonz87

    el_gonz87 GBAtemp Advanced Maniac

    Member
    1,559
    929
    Aug 24, 2016
    United States
    Luma updater? Huh? After uninstalling A9LH Luma will be obsolete. You also won't be able to uninstall on 11.3 firm.

    Well depending on the method you will end up uninstalling A9LH at either 9.2 (options c and b) or with a prior backup at whatever firmware it will be in <11.3 I suppose.

    If you go with option b then ensure to check TWL prior to uninstalling A9LH as I corrected above.
     
  18. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    No, i am saying it on 11,2 with a9lh, forget about uninstall
     
  19. el_gonz87

    el_gonz87 GBAtemp Advanced Maniac

    Member
    1,559
    929
    Aug 24, 2016
    United States
    Oh yeah if you don't uninstall, sure A9LH+Luma on SysNAND is safe to update to 11.3, but make sure you update Luma first using the updater as you said.
     
  20. BlackSwordJon
    OP

    BlackSwordJon Member

    Newcomer
    46
    0
    Feb 11, 2017
    Canada
    Which option, Install normal version or latest hourly(b1b81c87)?