About NATIVE_FIRM and downgrades

Discussion in '3DS - Console, Accessories and Hardware' started by gnmmarechal, Feb 28, 2016.

  1. gnmmarechal
    OP

    gnmmarechal Kirigiri > Naoto

    Member
    GBAtemp Patron
    gnmmarechal is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    4,671
    2,844
    Jul 13, 2014
    Portugal
    https://gs2012.xyz
    I couldn't find the questions forum, if there is one. As such, I'll ask my question here. Is there any specific reason why we didn't downgrade ONLY NATIVE_FIRM from 9.3-10.3 to 9.2 and instead we downgraded the whole system with sysUpdater?
     
  2. iAqua

    iAqua GBAtemp Addict

    Member
    GBAtemp Patron
    iAqua is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    2,754
    2,268
    Dec 7, 2015
    Antarctica
    I'm not exactly sure, but probably due to frankenfirms being really unstable and all the updated titles could mess with it.
     
  3. zoogie

    zoogie simple pimp tool

    Member
    6,350
    8,046
    Nov 30, 2014
    United States
    Try it and find out.
     
  4. gnmmarechal
    OP

    gnmmarechal Kirigiri > Naoto

    Member
    GBAtemp Patron
    gnmmarechal is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    4,671
    2,844
    Jul 13, 2014
    Portugal
    https://gs2012.xyz
    I will, once I hardmod my DS.

    — Posts automatically merged - Please don't double post! —

    but doesn't a9lhax protect NATIVE_FIRM at boot and prevent updates to just that specific file? While allowing you to update to the latest FW?
     
  5. iAqua

    iAqua GBAtemp Addict

    Member
    GBAtemp Patron
    iAqua is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    2,754
    2,268
    Dec 7, 2015
    Antarctica
    But you wouldn't have a9lh.
     
  6. gnmmarechal
    OP

    gnmmarechal Kirigiri > Naoto

    Member
    GBAtemp Patron
    gnmmarechal is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    4,671
    2,844
    Jul 13, 2014
    Portugal
    https://gs2012.xyz
    Sure, but I meant, if A9lh protects NATIVE_FIRM against updates, then it means you'd have a 10.6 sysNAND with an older NATIVE_FIRM. Why would downgrading NATIVE_FIRM not work? You'd end up with a 9.3-10.3 system with an older NATIVE_FIRM as well.
    That is my point.
     
  7. iAqua

    iAqua GBAtemp Addict

    Member
    GBAtemp Patron
    iAqua is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    2,754
    2,268
    Dec 7, 2015
    Antarctica
    I believe softbricks have been caused due to updated titles, 2.0 wouldn't understand all of the files.
     
  8. tvall

    tvall GBAtemp Regular

    Member
    271
    75
    May 12, 2014
    United States
    if i understand correctly, titles like homemenu and such require certain versios of native_firm. version doesnt mach = title doesnt load. a 3ds without a home menu or settings or anyting isnt very useful.
     
  9. gnmmarechal
    OP

    gnmmarechal Kirigiri > Naoto

    Member
    GBAtemp Patron
    gnmmarechal is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    4,671
    2,844
    Jul 13, 2014
    Portugal
    https://gs2012.xyz
    Oh, I see. Thank you. Then, how does a9l allow you to have an old NATIVE_FIRM alongside say, 10.6 FW?
     
  10. tvall

    tvall GBAtemp Regular

    Member
    271
    75
    May 12, 2014
    United States
    the checks are only for versions, not revisions. so i think on 10.6 you cna go all the way down to 9.6 firm or something
     
  11. gamesquest1

    gamesquest1 Nabnut

    Member
    14,135
    9,478
    Sep 23, 2013
    Afaik 10.3-10.6 was the first FW version susceptible to such an attack as with every other FIRM update the version has been increased, for whatever reason with 10.4-10.6 the FIRM number was kept the same and only the revision code was updated, the problem with that is that the 3ds only verifies the version number and the revision number doesnt matter