1. MikeTheKnight2016

    OP MikeTheKnight2016 GBAtemp Fan
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    Hello GBA - I had my 3DS all up and running and now it will only flash a blue light and turn off.

    This is what my SD Card set-up looks like - and yes I have a back-up of it all :)

    WHat must I do to recover and get this 3DS booting again?

    And this is the tut I followed to hack it - I think it's the Luma CFW

    https://3ds.hacks.guide/finalizing-setup.html

    EDIT -
    I tried to copy over the arm9loader.bin as suggested here to the root of my SD Card, but still flashes blue and powers off

    https://gbatemp.net/threads/messed-up-blue-light-turning-on-and-then-off.454336/
     

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    Last edited by MikeTheKnight2016, Jul 17, 2018
  2. NFates

    NFates Wants to understand™
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    1-Backup your files.
    2-Format your SD card using guiformat. Format it as FAT32 with 32kb cluster size.
    3-Test your SD card using h2testw.

    If everything is ok with your card, restore your contents and put the latest Luma release (the boot.firm file) in your SD card, replacing the existing one.
     
  3. TurdPooCharger

    TurdPooCharger Temporarily away.
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    @MikeTheKnight2016
    • Do you hear a popping noise when it turns off?
    • What happens when you try booting it without the SD card?
    • Can you enter Recovery Mode?
    If you can't access Recovery Mode or GodMode9, your issue is hardware based either with a bad card reader, disconnected flex cable (or one with broken lead), and if this is an old 2DS/3DS , WiFi module may need to be reseated.
     
  4. leerz

    leerz GBAtemp Advanced Fan
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    payload not found
     
  5. MikeTheKnight2016

    OP MikeTheKnight2016 GBAtemp Fan
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    SD Card test A-OK.

    Should I follow the tut in my OP to basically "start new"?
     
  6. NFates

    NFates Wants to understand™
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    No need to do the tutorial again. If you put the Luma boot.firm on the root of your SD card and the 3DS still flashes the blue LED and turns off, it's more than a simple problem, like I was suggesting.

    You should follow Turd's instructions now.

     
  7. MikeTheKnight2016

    OP MikeTheKnight2016 GBAtemp Fan
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    Where is a good link to get the luma boot.firm from?
     
  8. NFates

    NFates Wants to understand™
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    MikeTheKnight2016 likes this.
  9. Namesnipe

    Namesnipe GBAtemp Regular
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    This is a problem that's extremely common. Next time, please read the guide's FAQ or search.
     
    WesMods and NFates like this.
  10. MikeTheKnight2016

    OP MikeTheKnight2016 GBAtemp Fan
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    Copying over ONLY the boot.firm file my 3DS boots to the Luma3DS v9.0 configuration page

    Should I copy over all of the "old" contents back to the SD Card excluding the boot.firm file?
     
  11. Namesnipe

    Namesnipe GBAtemp Regular
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    Yes
     
  12. NFates

    NFates Wants to understand™
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    Hit start in the configuration menu, and yes, you can restore everything (sans the old boot.firm).
     
  13. hoodhippo

    hoodhippo Member
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    everything work out?
     
    Negatronic likes this.
  14. Al970h2435

    Al970h2435 Member
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    Hey everybody just got to use Nintendo 3DS off eBay, that was missing the boot.firm since no SD card was provided.

    It will not boot just the blue light for a second. After extensive troubleshooting a discovered version Luma3d 7.1boot.firm causes a screen to flicker for a quick second.

    I took a picture to see what it was. Its the 7.1 configuration screen.

    What file am I missing now since the 3ds still turns off.
     

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  15. TurdPooCharger

    TurdPooCharger Temporarily away.
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    Temporarily rename SafeB9SInstaller as the boot.firm, do Updating B9S, and then Finalizing Setup.
     
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