Emunand NNID issue every time, on every 3DS

Discussion in '3DS - Flashcards & Custom Firmwares' started by MattKimura, Feb 8, 2016.

  1. MattKimura

    MattKimura 3DS & WiiU Enthusiast

    Jun 30, 2014
    United States
    One reoccuring thing I have to do for my friends is fix their NNID in emunand. I'm not sure how to avoid this, all I know is that NNID was setup in sysnand before formatting emunand. Which then I'd unlink the nands.
    It's just ridiculous that I have to go through THIS guide every time.

    I guess since it was still tied to sysnand, it didn't properly switch to emunand. Thing is, how would I even remove the NNID from sysnand without losing all my save data, etc?

    Am I supposed to backup the Nintendo 3DS folder, format sysnand, put back the backup files, THEN format emunand to avoid nnid issues in emunand?
  2. cearp

    cearp 瓜老外

    May 26, 2008
    if the sysnand is above fw 7 or something, you will have to be online to format.
    i recommened installing 4.5 system settings, or the earliest 2ds version, somyou can format without having to relink the nnid. then simply format sysnand without the sd in the console...
    or use tinyformat.
  3. James310

    James310 GBAtemp Advanced Fan

    Oct 4, 2015
    United States
    Somewhere in California
    You need to use tiny format to avoid nnid issues when formating sysnand
    MattKimura and TeconMoon like this.
  4. Xenon Hacks

    Xenon Hacks GBAtemp Guru

    Nov 13, 2014
    United States
    I've only ever had this problem once my solution when resetting my N3DS for whatever reason was to backup my saves with SDF, system format Emunand then system format sysnand, format my SD (delete Emunand), run the initial setup and system format again. setup my GW / CFW and log into the NNID in Emunand not Sysnand.
  5. RednaxelaNnamtra

    RednaxelaNnamtra GBAtemp Advanced Fan

    Dec 8, 2011
    Simply use tinyFormat on the sysnand, so you won't need to do anything to the emunand, after setting it up.
    If there is a 3dsx of it, you could also make a tiny sdcard ready with boot.3dsx and tinyformat and start it using browserhax, cubic ninja or oothax. This way there is also o need to backup the 3DS sd card.
    MattKimura likes this.
  6. Arubaro

    Arubaro Soulspace Guardian

    Sep 4, 2015
    This happens because when you clone your sysnand into your emunand with the nnid still linked, emu and sys are linked both to themselves and nintendo servers.

    If you want to have emunand and sysnand as two completely different systems, you need to format one of them (frequently sysnand). The thing is when you format one of them, you're saying to nintendo servers that you will stop using that nnid temporaly, but the other system (the one not formated, frequently emunand) still thinks you're using that nnid, hence the error when the status in nintendo servers and emunand mismatch.

    I think tinyformat format your system without telling the server the fact that you are not going to use the nnid (because in fact, you'll be using in the other nand)
  7. MattKimura

    MattKimura 3DS & WiiU Enthusiast

    Jun 30, 2014
    United States
    Thanks for the replies, Tinyformat makes much more sense. Gonna start making that mandatory when setting up CFW from now on. Almost everyone already has an NNID before setting up CFW so you most defintiely need to use Tinyformat instead of 9.0's system setting's. I've always wondered why tinyformat would be useful, now I have perfect use for it. This is gonna save a LOT of trouble. How come it's not common knowledge to use tinyformat to separate the nands? Well at least I didn't know about doing that until now. I had like 3-4 friends with the nnid issue and it was irritating me.
  8. Naked_Snake

    Naked_Snake Constant Miscreant

    Oct 6, 2013
    Hyrule Field
    I've had my nnind linked when I downgraded my N3ds and now I have reinand 10.5 do I just install tinyformat cia and format sysnand from that?
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