keep getting Failed to mount CTRNAND!

Discussion in '3DS - Flashcards & Custom Firmwares' started by darky2003, Apr 18, 2017.

  1. darky2003
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    darky2003 GBAtemp Regular

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    https://3ds.guide/installing-arm9loaderhax
    Section III - Configuring Luma3DS
    STEP 3 says:

    Press (Start) to save and reboot
    • If you get a black screen, just continue to the next section
    • If you get a “Failed to mount CTRNAND” error, just continue to the next section
    then i have to
    1. Boot your device while holding (Start) to launch the Luma3DS chainloader menu
    This step doesn't work!
    i'm always getting Failed to mount CTRNAND when i try to start when pressing start and power button.

    How do i fix this :s , all files should be in correct folders!
    Should i try to install hourglass9 and restore my SYSnand from a backup?
     
    Last edited by darky2003, Apr 18, 2017
  2. JefroyTJF

    JefroyTJF Newbie

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    Do you have Luma's arm9loaderhax.bin in the root of your sd?
     
  3. GerbilSoft

    GerbilSoft GBAtemp Addict

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    Are you using a New 3DS that's currently downgraded to 2.1?
     
  4. darky2003
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    darky2003 GBAtemp Regular

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    Yes 2.1 , and yes i have arm9loaderhax.bin in the root.

    Seen multiple people having this same issue without doing anything wrong, problem is i don't know whats the best way to recover my new3ds.
     
  5. GerbilSoft

    GerbilSoft GBAtemp Addict

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    Make sure you copied arm9loaderhax.bin from the latest version of Luma3DS, which is currently v7.0.1: https://github.com/AuroraWright/Luma3DS/releases/download/v7.0.1/Luma3DSv7.0.1.7z

    You should also have the GodMode9 payload in sd:/luma/payloads : https://github.com/d0k3/GodMode9/releases/download/v1.0.7/GodMode9-20170324-202632.zip

    Then, with the 3DS off, hold the Start button, and power on. If you still get the CTRNAND error, then for some reason Luma doesn't want to show the chainload menu, in which case you can proceed to Option B.

    Option B: Rename GodMode9's payload to arm9loaderhax.bin and put that at the root of the SD card. This will start GodMode9 when you turn the 3DS on instead of Luma3DS. You'll need to restore the Luma3DS arm9loaderhax.bin once you're done.

    EDIT: You may need to name it arm9loaderhax_si.bin for screen init if you get a blank screen using Option B.
     
    Last edited by GerbilSoft, Apr 18, 2017 - Reason: +si
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  6. darky2003
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    darky2003 GBAtemp Regular

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    i'm in godmode, what option should i take now? what do i have to do?
    isn't godmode only a file transfer app?

    Should i go with hourglass9 and restore my system nand?
     
    Last edited by darky2003, Apr 18, 2017
  7. GerbilSoft

    GerbilSoft GBAtemp Addict

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    Continue from where you left off in the guide, Section IV. It says to use GodMode9 to restore the ctrtransfer image that you saved previously.

    If you saved a full NAND dump, you can use Hourglass9 instead. You'll need to make Hourglass9 the arm9loaderhax.bin file.
     
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  8. darky2003
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    darky2003 GBAtemp Regular

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    I would like to thank you for your support, i finaly managed to get a cfw on my 3ds :yay3ds:.
    It really was a pain in the ass because the https://3ds.guide/ misses some important parts where things can go wrong. So for me it was a pain in the ass.
    Anyway, glad i did it. Up to the next 3ds from my daugter :unsure:
     
    Last edited by darky2003, Apr 19, 2017
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  9. Quantumcat

    Quantumcat Dead and alive

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    What parts did it miss? It looks to me like you failed to copy the correct files to your SD.
     
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  10. djender

    djender Member

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    I got the same error as darky2003.

    @Quantumcat, we didn't make a mistake, there really was something wrong. I checked all steps thrice and still got black screen.

    @GerbilSoft thank you very much for your support! I had to rename it to arm9loaderhax_si.bin and it worked!
     
  11. Quantumcat

    Quantumcat Dead and alive

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    But didn't you fix it after correcting the wrong files? You say it "left out important parts" what parts?