Downgrading Emunand?

Discussion in '3DS - Flashcards & Custom Firmwares' started by Randomdude0, Oct 25, 2015.

  1. Randomdude0
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    Randomdude0 Advanced Member

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    So I tried to play Triforce DL play with some friends, was using my Emunand which is on 10.2. Both of them are in 9.9 so they would have to update to play, both of them use themehax and browserhax. Is there a way to downgrade the emunand to 9.9 so it doesn't attempt to update the others?
     
  2. Quantumcat

    Quantumcat Dead and alive

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    Yes, use sysupdater and upgrade cia packs which you can find either on 3DNUS or "that" ISO site.
     
  3. Randomdude0
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    Randomdude0 Advanced Member

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    Its okay using sysupdater on emunand?
     
  4. Reisyukaku

    Reisyukaku Onii-sama~

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    I doubt sysupdater will work because the firm used in arm9 memory would be higher than that of the one you're trying to install. Theres no override on retail systems for that.
     
  5. Randomdude0
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    Randomdude0 Advanced Member

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    So if I create a new 9.2 emunand, will sysupdater work on it?
     
  6. Reisyukaku

    Reisyukaku Onii-sama~

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    As long as you're upgrading, you'll be fine.. Downgrading doesnt work if the firmware running is higher than the one youre installing.
     
  7. Zidapi

    Zidapi GBAtemp Addict

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    Are you speaking from personal experience, or merely hypothesising?

    I'm sure @RonH downgrades emuNAND as part of his old3DS to new3DS system transfer solution.:unsure:
     
    Last edited by Zidapi, Oct 25, 2015
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  8. Reisyukaku

    Reisyukaku Onii-sama~

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    Well I know for a fact that AM service doesnt allow installing of older firmwares, and checks arm9mem. But im not sure if sysupdater uses a kind of firmlaunch to bypass that.
     
  9. Randomdude0
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    Randomdude0 Advanced Member

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    Well, used sysupdater 0.4.1 downgrade function; successfully downgraded my emunand to 9.9. Thanks everyone.
     
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  10. Ronhero

    Ronhero Too Weird to Live, Too Rare to Die

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    Sysupdater downgrades doesn't include firm 0/1 as far as my tests have shown. I inject them manually if I need to downgrade emunand and flash to sys nand.

    With emunand and firm spoof downgrade works but I wouldn't try on sys nand directly
     
    Last edited by Ronhero, Oct 26, 2015
  11. zoogie

    zoogie simple pimp tool

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    I think shiny said that anti-downgrade protection can simply be bypassed by first deleting the old title, and then installing the older version.
     
  12. Reisyukaku

    Reisyukaku Onii-sama~

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    http://3dbrew.org/wiki/AM:InstallNATIVEFIRM
    It compares your CIA with what stuff in config memory.. which is set during firm launch. Idk, if it was easy, we'd all have 1.0.0 systems lol.
     
  13. Ronhero

    Ronhero Too Weird to Live, Too Rare to Die

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    I had a way to get to 1.x but nobody had a valid virgin firm dump for me to do it.
     
  14. kublai

    kublai GBAtemp Regular

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    Do you have instructions on how to downgrade you emunand?
     
  15. Ronhero

    Ronhero Too Weird to Live, Too Rare to Die

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