[Report] Spoofing menu/mint/mset/tiger on MT-card emuNAND failed

Discussion in '3DS - Flashcards & Custom Firmwares' started by MelonGx, Feb 9, 2016.

  1. MelonGx
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    MelonGx GBAtemp Advanced Maniac

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    Everybody knows that MT-card emuNAND can be partially upgraded:

    - Download latest firmware with 3DNUS
    - Replace the latest menu/mint/mset/tiger with 9.4 ones (otherwise emuNAND will blackscreen)
    - Use BigBlueMenu to install all the rest CIAs

    But since menu/mint/mset/tiger are not the latest version, the update nag will be downloaded normally.

    I tried spoofing 9.4 menu/mint/mset/tiger to make the system recognize them as 10.5 ones, for expecting it could remove the update nag:
    (Thanks somebody in GBATEMP who introduced this spoofing method.)

    - Open 9.4 menu/mint/mset/tiger CIA with Hex editor
    - Change offset 0x2F90 0C-0D values (they are in Hex) to 10.5 menu/mint/mset/tiger's values
    (You can find the values on 3dbrew.org, but they are in Dec, you need to convert them to Hex manually)
    - Overwrite installing modified CIA with FBI (menu cannot be overwritten)

    But unfortunately the result is - emuNAND blackscreens.
    That means this spoofing method doesn't work for MT-card emuNAND.

    -----------------------------

    BTW, this spoofing method works for SysNAND 1.1.0 exclusive Promotion Videos (0004001000023000/24000/25000) installing to emuNAND.
    It also fixes "Cannot install the video in same region" issue.
    To be noticed that "different region video" need RegionFree-enhanced system (GW/rxTools) otherwise they will not be displayed (Rei/Cakes).

    - Open the Video CIA with Hex editor
    - Change offset 0x2F90 0C-0D from 00 00 (v0, USA/EUR) or 00 02 (v2, JPN) to 08 00 (v2048)
    - Normally install modified CIA with BBM/FBI

    Haven't tried installing spoofed 1.1.0 videos to SysNAND though.
     
    Last edited by MelonGx, Feb 9, 2016
    -Xin- and Zidapi like this.
  2. Zidapi

    Zidapi GBAtemp Addict

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    This holds no interest or relevance to me personally, and only a very small group of users here will find it useful.

    But I appreciate your documenting your experiences all the same. Something that may seem useless now, may end up being very useful in the future. Good work.
     
    MelonGx likes this.
  3. MelonGx
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    MelonGx GBAtemp Advanced Maniac

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    At least someone who want this information can search a result in this board haha :D
     
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  4. telon22

    telon22 GBAtemp Regular

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    Last time I had my o3ds and mt-card(have bought a n3ds now) it was working with 10.3.
    This is what needs to done as far as I remember. You don't need to overwrite those 4 titles if you already have 9.4 emunand because it will result in error/black screen

    1-take those 4 tiles out from a 9.4 emunand pack and spoof them to 10.5 emunand no's.
    2-directly upgrade your o3ds from 4.x emunand to 10.5 without those 4 titles(delete them form the pack)
    3-once you have tested your emunand is working you can easily install those 4 titles with devmenu
    4 Profit??
     
  5. MelonGx
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    MelonGx GBAtemp Advanced Maniac

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    Never tried installing spoofed 4 titles on emuNAND 4.X.
    I'll try it later.