Vita Downgrade?

Discussion in 'PS Vita - Hacking & Homebrew' started by reymas101, Sep 1, 2016.

  1. FaithWaith

    FaithWaith Newbie

    Newcomer
    2
    0
    Nov 21, 2016
    United States
    thank you

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

    i dont think downgrading is nessesarily possible
    though..
    but the update for HENkaku will come to 3.61 and 3.63

    SOMEDAY...
    someday
     
  2. satan89

    satan89 GBAtemp Fan

    Member
    400
    143
    Jan 30, 2014
    India
    Limbo
    Nobody is working on it (publicly) and I don't think anyone would waste an exploit this early even if they found one. Currently, new boxed vitas still ship with 3.60 and there are too few games requiring 3.61 and above so releasing an exploit that takes weeks of work finding and reversing is not justified as yet. Anybody on 3.61 should look for a used 3.60 or lower, they're dirt cheap most places, or even buy a boxed set if they're picky about buying used.

    The only people who are missing out are those very new to hacking scene since people have been telling not to upgrade Vita firmware way before HENkaku, I think it started back with the PSP scene.
     
    Tony_93 likes this.
  3. alan_mugiwara

    alan_mugiwara Member

    Newcomer
    13
    1
    Mar 29, 2017
    Brazil
    Brazil
  4. Sonic Angel Knight

    Sonic Angel Knight GBAtemp Legend

    Member
    10,971
    5,661
    May 27, 2016
    United States
    New York
    Any information not from wololo.net or gbatemp is fake :P
     
    Eix, alan_mugiwara and slaphappygamer like this.
  5. alan_mugiwara

    alan_mugiwara Member

    Newcomer
    13
    1
    Mar 29, 2017
    Brazil
    Brazil
    thanks, dude
     
  6. Sonic Angel Knight

    Sonic Angel Knight GBAtemp Legend

    Member
    10,971
    5,661
    May 27, 2016
    United States
    New York
    Stick around here, you'll know if a downgrade is real, it will be plastered on the front page of the site when or if is real. :P
     
    CallmeBerto likes this.
  7. VitaType

    VitaType GBAtemp Advanced Fan

    Member
    778
    350
    Jul 16, 2016
    Germany
    hackinformer.com is another reliable and trusthworthy source (the blog and the guide, not the forums over there)
     
  8. Haider Raza

    Haider Raza Alhumdulillah

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

    Our Patreon
    1,412
    268
    Jan 30, 2016
    Pakistan
    Why isn't vita downgrade available? What's the issue of its not being done?
     
  9. Tom Bombadildo

    Tom Bombadildo I'm Henery the Eighth, I am!

    pip Contributor
    GBAtemp Patron
    Tom Bombadildo is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    11,209
    11,487
    Jul 11, 2009
    United States
    I forgot
    There are multiple reasons why. The main one is that a downgrade would mainly require extensive kernel access which, at that point, would already allow Henkaku-levels of access to system. This would make a downgrade effectively useless, because we'd gain nothing from degrading as we already have the same or greater access on the newer firmware.

    It's also suggested that the Vita's NAND encryption is device specific, meaning that unless you have a way to generate your Vita's specific encryption key (unlikely) or you have a previous NAND backup from your Vita, you wouldn't be able to just download a NAND backup from anywhere and install it no problem. It's also suggested that downgrading the NAND would require a hardmod as well, making it unavailable to people without extensive hardware modification experience. At that point, it'd simply be easier (and likely cheaper) to buy a replacement Vita motherboard that's easy to swap out than it would be to potentially ruin your system with a difficult hardmod.
     
  10. DinohScene

    DinohScene Feed Dino to the Sharks

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

    Our Patreon
    17,304
    14,077
    Oct 11, 2011
    Antarctica
    В небо
    I should add that soldering NAND access wires to a Vita isn't that easy, let alone soldering anything to a Vita.
    The points are incredibly tiny and unless you've got some impressive soldering skills, the chances of fucking it up is tremendous.

    Like Tom suggested, the cheapest and easiest way to downgrade a Vita is to swap motherboards.
     
  11. SKGleba

    SKGleba O ja pierdole!

    Member
    317
    161
    Nov 11, 2016
    Poland
    Warsaw
    No way to downgrade with old fw nand dump, <<<<
    Yes , you can unbrick easy bricks (i.e os0 delete) , but only with NAND dump that matches fw version set in the chip.
    Both things tested^^^
     
    Last edited by SKGleba, Nov 9, 2017
    Eix and DinohScene like this.
  12. t0m_o4

    t0m_o4 Newbie

    Newcomer
    1
    0
    Tuesday
    United Kingdom
    Hi, is it possible to downgrade a ps vita by switching out the motherboard for one with a lower firmware????
     
  13. Gnarmagon

    Gnarmagon Noob <3

    Member
    552
    95
    Dec 12, 2016
    Germany
    It's possible to downgrade from 3.60 to anything below that but I have no PSVita's to brick nor do I have the money or skills to install a NAND Mod with a microscope XD

    https://wiki.henkaku.xyz/vita/index.php?title=Updater&mobileaction=toggle_view_mobile

    pseudo code for downgrade

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

    yes, did it myself XD because I bricked the original one
     
    Eix likes this.
  14. SKGleba

    SKGleba O ja pierdole!

    Member
    317
    161
    Nov 11, 2016
    Poland
    Warsaw
    As i told you on discord , it is NOT possible to downgrade, at least not without a f00d hakk.
    Flashing old NAND dump == brick.
    Using the code you provided - fail at keys flashing& syscon ver flashing which results in a brick.
    Ofc you may try to do whatever you want with this, but you have been warned what may (will) happen.
     
    Eix likes this.
  15. Eix

    Eix GBAtemp's Best Waifu (now lewd-ish)

    Member
    683
    1,263
    May 27, 2017
    United States
    Vanilmirth
    >no 3.61+ being worked on
    id beg to differ
    how else would daddy gleba get 3.67 files?

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

    that's because the motherboard is pretty much the whole system...
     
  16. Gnarmagon

    Gnarmagon Noob <3

    Member
    552
    95
    Dec 12, 2016
    Germany
    well, the post was created before I wrote about this on Discord ......, would have been too easy if you could downgrade without f00d XD
     
    SKGleba and Eix like this.
  17. Eix

    Eix GBAtemp's Best Waifu (now lewd-ish)

    Member
    683
    1,263
    May 27, 2017
    United States
    Vanilmirth
    just write MEGUMIN to the first 7 bytes of f00d :P
     
    SKGleba likes this.
  18. SKGleba

    SKGleba O ja pierdole!

    Member
    317
    161
    Nov 11, 2016
    Poland
    Warsaw
    You can raw dump with only userl exploit.
     
    Eix likes this.
  19. nero99

    nero99 GBAtemp Addict

    Member
    2,081
    989
    Sep 18, 2014
    United States
    sure there is. its called buying a 3.60 motherboard ;)
     
  20. Eix

    Eix GBAtemp's Best Waifu (now lewd-ish)

    Member
    683
    1,263
    May 27, 2017
    United States
    Vanilmirth
    yeah but that's still something 3.61+
     
    SKGleba likes this.