1. Azadar

    OP Azadar GBAtemp Regular
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    So before I begin let me thank anyone who is willing to help me with a situation I caused myself stupidly.. That said I need some help

    I have a Nintendo 3DS XL (2015) which had custom firmware installed running Luma3ds V10.0.1 running. I hadnt used it in a while and I got a notification that a firmware was found to update so I did. Now when I booted the system I got the ARM11 exception error. Doing research I was led to believe I just needed to update the Luma to the 10.2.1 version by placing the files on the root of my sd and reboot. Which I did and had no effect in fact when I boot now

    I still see LUMA3DS v10.0.1 configuration menu. I was able to get into GOD9mode as well, but after a while and reading I formatted the SD card and now I have a blank SD with Luma 10.2.1 files on root and nothing else.

    I can no longer access GOD9mode and Only have the Luma#DS v10.0.1 configuration available to me. It seems that version is hard coded into the 3DS now as I can access this even with no SD card in. So I assume I need to somehow force the 10.2.1 to the 3ds itself to fix the issue?

    Im over my heard now guessing and probably screwed up by deleting the SD card, so Im asking for help is there a way to recover this now or am I screwed??

    THanks again for those who help appreciate this community.
     
  2. fmkid

    fmkid Just another GBATemp's random guy
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    Have you formatted the SD card on FAT32 (primary partition, MBR table type, 32kB cluster size)? Did you put the boot.firm and boot.3dsx files from latest Luma version (10.2.1) on the root of that SD card?

    Please post a picture of the entire (both screens) Luma config menu that actually your console shows (or at least look for the yellow string on the bottom screen, and write out it here).
     
  3. Azadar

    OP Azadar GBAtemp Regular
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    Yes formatted a new sd fat32 32kb downloaded newest luna3d and placed the files on the root of the sd in no folder.

    here is what happens s when i normal boot and when I press select and start

    https://ibb.co/XsrCQLc
    https://ibb.co/G2RbFZN

    Notice the second image still shows 10.0.1 its like its not reading from the SD at all but pulling that from a preloaded file in the DS itself or the CFW settings
     
    Last edited by Azadar, Jan 7, 2021
  4. godreborn

    godreborn GBAtemp Legend
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    it's probably reading from the ctrnand then. that's where the other boot.firm is. something may be wrong with your sd card or the reader.
     
  5. Azadar

    OP Azadar GBAtemp Regular
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    Im on a macbook air is there a certain way to do this?
     
  6. godreborn

    godreborn GBAtemp Legend
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    you can get into godmode and change the boot.firm and even check if the sd card is being read. I think it's holding start when you boot up the system.

    the godmode .firm should be in the payloads folder.
     
    Last edited by godreborn, Jan 7, 2021
  7. Azadar

    OP Azadar GBAtemp Regular
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    I used to be able to see that, but since I formatted the SD card its gone. Now nothing happens when I press the godmode start and power. I get the ARM11 error again
     
  8. fmkid

    fmkid Just another GBATemp's random guy
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    As I thought, you installed the Luma (10.0.1) payload on FIRM0 (that's is NOT recommended at all).

    Fortunatelly, you can revert that following this guide:
    https://3ds.hacks.guide/updating-b9s.html
     
  9. TurdPooCharger

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    Was there anything important on the SD card that you wanted to retain like games, dlcs, updates, extdata, and saves? Did you not backup or copy anything from the SD card before reformatting it, like the Nintendo 3DS folder?

    If you have Windows bootcamp, go with EaseUS. For MacOS only, that leaves just Stellar Phoenix.
     
  10. Azadar

    OP Azadar GBAtemp Regular
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    OK SO I MADE SOME PRIOGRESS I believe...

    I formatted the SD card again and this time installed the custom FW starter kit. https://gbatemp.net/threads/3ds-cfw-restoring-functionality-on-a-new-sd-card.507458/#post-8052010

    After this I was able to boot into god9 mode. I than copied the boot.firm from the root of the SDS card and overwrote the firmware in the system.

    Now I can get to GOD9 mode and I can boot the 3ds.. It goes to a blank looks like original firmware 11.4.x menu I do see a Custome Forimware folder but nothing is in it and I cant run seem to launch anything like its brand new.
     
  11. TurdPooCharger

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    Did you copy everything off the SD card to a computer before reformatting it?

    It sounds like you erased all your games, dlcs, updates, saves, extdata, roms, themes, homebrew apps, and whatnot without taking the time to back them up first.

    I don't think you'll be able to get them back at this point with a data recovery program after all those reformats.
     
    Last edited by TurdPooCharger, Jan 8, 2021
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