Downgrading Emunand?

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

  1. Randomdude0
    OP

    Randomdude0 Advanced Member

    Newcomer
    1
    Jun 4, 2015
    Colombia
    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

    Moderator
    18
    GBAtemp Patron
    Quantumcat is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    Nov 23, 2014
    Australia
    Canberra, Australia
    Yes, use sysupdater and upgrade cia packs which you can find either on 3DNUS or "that" ISO site.
     
  3. Randomdude0
    OP

    Randomdude0 Advanced Member

    Newcomer
    1
    Jun 4, 2015
    Colombia
    Its okay using sysupdater on emunand?
     
  4. Reisyukaku

    Reisyukaku Onii-sama~

    Member
    14
    Feb 11, 2014
    United States
    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
    OP

    Randomdude0 Advanced Member

    Newcomer
    1
    Jun 4, 2015
    Colombia
    So if I create a new 9.2 emunand, will sysupdater work on it?
     
  6. Reisyukaku

    Reisyukaku Onii-sama~

    Member
    14
    Feb 11, 2014
    United States
    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 Psycho!

    Member
    10
    Dec 1, 2002
    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
    Quantumcat likes this.
  8. Reisyukaku

    Reisyukaku Onii-sama~

    Member
    14
    Feb 11, 2014
    United States
    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
    OP

    Randomdude0 Advanced Member

    Newcomer
    1
    Jun 4, 2015
    Colombia
    Well, used sysupdater 0.4.1 downgrade function; successfully downgraded my emunand to 9.9. Thanks everyone.
     
    Margen67, Quantumcat and SomeGamer like this.
  10. Ronhero

    Ronhero Too Weird to Live, Too Rare to Die

    Member
    8
    Jun 28, 2014
    United States
    Arizona Bay
    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 playing around in the dsiware

    Member
    19
    Nov 30, 2014
    Micronesia, Federated States of
    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~

    Member
    14
    Feb 11, 2014
    United States
    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

    Member
    8
    Jun 28, 2014
    United States
    Arizona Bay
    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 Fan

    Member
    4
    May 29, 2008
    United States
    Do you have instructions on how to downgrade you emunand?
     
  15. Ronhero

    Ronhero Too Weird to Live, Too Rare to Die

    Member
    8
    Jun 28, 2014
    United States
    Arizona Bay
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice