Possible Way Of Downgrade ??

Discussion in 'PS4 - Hacking & Homebrew' started by KeyZHostHD, Aug 9, 2018.

  1. KeyZHostHD
    OP

    KeyZHostHD Newbie

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    Aug 9, 2018
    Norway
    if you would get a ps4 5.05 backup original , and loaded the backup on your ps4 , it should technicly work right ??
     
  2. KiiWii

    KiiWii Contributor

    pip Contributor
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    Nov 17, 2008
    United Kingdom
    Nope.

    If you’re on 5.05, back up, update to 5.55, restore, it won’t match and won’t work.
     
    Hayato213 likes this.
  3. zecoxao

    zecoxao GBAtemp Fan

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    Dec 25, 2013
    one would need a backup of the console's snvs responses (which are perconsole encrypted) and to be on a version that would allow a kernel exploit.
    In theory one could go from 5.05 to 1.01 on a phat this way, but what would be the point?
     
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  4. KiiWii

    KiiWii Contributor

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    Nov 17, 2008
    United Kingdom
    SNVS is syscon related right, based on failoverfl0ws last write up.
     
  5. KeyZHostHD
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    KeyZHostHD Newbie

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    Aug 9, 2018
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    so how exacly can i get a backup of that
     
  6. zecoxao

    zecoxao GBAtemp Fan

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    Dec 25, 2013
    you need to dump all that is syscon related when on a firmware like 1.01. and it'd only work for your specific console
    edit: and yes, you need hardware to do that, you'd have to do it like f0f did. it'd be easier once you had the 10 byte protection key, but it'd still involve glitching the syscon after that
     
    Last edited by zecoxao, Aug 10, 2018
  7. Shah Isah

    Shah Isah GBAtemp Regular

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    3
    Sep 7, 2016
    I'm sure there'll be some sort of flasher just like the psp. People thought it was impossible to downgrade as it was secured on the nand chip but hellcat came out of nowhere with its homebrew and did the impossible. Those were the days :')
     
  8. KeyZHostHD
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    KeyZHostHD Newbie

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    Aug 9, 2018
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    i have a friend at work who can program anything in c++ / c / Java / C# / And Reverse Enginer system security
     
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