Possibility to play 5.xx games on firmware 4.05

Discussion in 'PS4 - Hacking & Homebrew' started by Mo Poge, Feb 14, 2018.

  1. Mo Poge
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    Mo Poge Advanced Member

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    Can't post a link, but there's an article on Wololo about this...

    Has anyone tried this out on any >4.05 games? I have a hunch many of the new games have >4.05 functionality built into them, but I wonder if we could get incremental builds to work?

    For example, if a game was released on 4.07 but later had updates released that required 4.50 or 5.0 functionality...I wonder how many of those games are out there? Would be good to get a database going on this if it truly does work.
     
  2. tonyhhhh

    tonyhhhh Advanced Member

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    Jan 7, 2017
    How to lower the firmware requirement in ELF and PRX files

    Example of lowering the firmware required for files compiled with the leaked 4.50 SDK (tested on 4.05) hex editing some bytes:

    1. In the ELF section called "sce_process_param" we patch the reversed sdk version (there should only be one instance of the pattern):
    search for "01 81 50 04" and replace with "31 80 50 03"

    2. In the ELF section called "sceversion" we patch the sdk version (multiple instances of the pattern will be found):
    search for "04 50 81 01" and replace with "03 50 80 31"

    3. Resign it with flatz's make_fself.py or add it to a PKG with cfwprophet's Fake_PKG_Generator

    4. Profit

    5. A side effect of this is that if someone is able to dump games on higher firmwares (ex. 5.05) it SHOULD be possible to play those games in lower firmwares (ex 4.05) with this method, unless the games uses functionality added on newer SDKs


    ALL CREDITS TO cfwprophet and φ CelesteBlue φ
     
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  3. Mo Poge
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    Mo Poge Advanced Member

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    In addition to being able to play games released after 4.05, I wonder if this method could help us add post-4.05 updates (that don't require the newer SDKs) to both pre and post 4.05 games?
     
  4. xYuunax

    xYuunax Advanced Member

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    Horizon Zero Dawn was dumped and tested on 4.05 (boots and plays), but the downside is the person who dumped it has a private exploit (4.50-5.xx).. so we're dependent on people with private exploits for these dumps.

    Too bad we can't test this yet, as the dump was shared privately to a small group of ppl.
     
    Last edited by xYuunax, Feb 14, 2018
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  5. THEELEMENTKH

    THEELEMENTKH -

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    Well, it must not be so private if I can download it on a certain warez site :P
    Screenshot_2018-02-14-22-11-25.png
    EDIT: Any mod that sees this can freely remove this message if it breaks the rules (but I believe it doesn't break them since I'm not linking the dump, but who knows)
     
    Last edited by THEELEMENTKH, Feb 14, 2018
  6. xYuunax

    xYuunax Advanced Member

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    have you tried it yet? i was told scene releases don't work.

    the nfo i found shows this was posted back in 2017-05-03
     
    Last edited by xYuunax, Feb 14, 2018
  7. THEELEMENTKH

    THEELEMENTKH -

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    May 31, 2016
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    No because of various things:
    -I have ADSL, so downloading this would take more than a week
    -My router broke (I'm typing this with my phone)
    -My PS4 is on fw 4.73 so I can't try it
     
  8. tonyhhhh

    tonyhhhh Advanced Member

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    Jan 7, 2017
    I will try it in the morning .


    Sent from my iPhone X using Tapatalk
     
  9. subcon959

    subcon959 teh retro

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    Dec 24, 2008
    Of course a scene rls from a year ago isn't gonna magically work on 4.05 HEN. Sheesh.
     
  10. tonyhhhh

    tonyhhhh Advanced Member

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    Jan 7, 2017
    See that you bluntly put it , care to explain why?


    Sent from my iPhone X using Tapatalk
     
  11. KiiWii

    KiiWii GBAtemp Guru

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    Elf patcher is out now :)
     
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  12. Mo Poge
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    Mo Poge Advanced Member

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    Excellent! Things are getting really interesting!
     
  13. ModderFokker619

    ModderFokker619 GBAtemp Regular

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    Real nice.
     
  14. rednekcowboy

    rednekcowboy GBAtemp Regular

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    can have as many patcher tools as you like, if the game isn't dumped and decrypted from the fw it is or higher, it is useless on 4.05.

    IE, a 5.05 game needs to be dumped on 5.05 or greater in order for anything to have the ability to "make it work" on 4.05.

    So unless the people that have the higher exploits start dumping games like mad, which is extremely unlikely, you're out of luck to get any games resigned any time soon.
     
  15. KiiWii

    KiiWii GBAtemp Guru

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    Duplex and various other groups are starting to dump 4.05 compatible PKGs now, so no doubt they will look to obtain something somehow.
     
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  16. rednekcowboy

    rednekcowboy GBAtemp Regular

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    There is a tonne of 4.05 compatible pkgs but I challenge you to show me above 4.05 games resigned for 4.05....
     
  17. KiiWii

    KiiWii GBAtemp Guru

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    Give it time and Horizon will surface.

    Its been like 12hrs since Celesetblue posted Barthens method, and even less since the elf tool came out....

    I just dont get why they dont go spoofer method on console (1 time) rather than per elf/sfo.. etc per game...? Maybe the payload for that is not possible yet.
     
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  18. mustafag32g

    mustafag32g GBAtemp Advanced Fan

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    They cant go spoofer! The console needs to decrypt the games before it plays them and with fw higher than 4.05 it needs the keys! They dont have them... The only solution is to manually change the fw version with hxd editing due to sdk leak..
     
  19. KiiWii

    KiiWii GBAtemp Guru

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    The games obviously need to be dumped on >4.05 consoles...

    I dont know much about dumping games but are the games decrypted as theyre dumped? Like while running on the >4.05 console using a dumper payload..? I genuinely dont know this stage.

    The dumps need various version strings lowered in a couple of places to be POSSIBLY allowed to run on <4.50/5.XX... there are no guarantees here.

    All the elf patcher does is edit a number... is it not possible to edit the number on the HEN console?

    Again: obviously if the game requires something from an sdk higher than 4.05 its not going to work even with edited elf etc.
     
    Last edited by KiiWii, Feb 15, 2018
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  20. rednekcowboy

    rednekcowboy GBAtemp Regular

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    No that is wrong. There are resigners and a method though it requires that a package be dumped on the firmware it originates from or higher.
    I get what you are saying, I'm just getting very tired of this "gimme gimme gimme" attitude we are seeing. The ps4 scene is infintile and we are lucky we have anything usable at this point. Everyone needs to reign in their excitement, be grateful for what has been shared thus far and just wait. All the goodies will come but we are just at baby steps at this stage and people are looking for and demanding giant leaps!

    If it's this frustrating for me, I can only imagine how the people actually putting in the very hard work and long hours must feel seeing these comments.
     
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