THREAD: How to Downgrade any firmware on your ps3 with teensly++ (soldering Required)
  1. 08-12-2011, 05:17 PM
    Stack0verfl0w's Avatar
    Stack0verfl0w
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    NextGenUpdate
    If anyone wants to try this: IT IS COMPLETELY AT YOUR OWN RISK.
    solder points
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    Thanks ps3devwiki and jarmster for those also for other model motherboards check here

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    and heres one for JSD 100 You must login or register to view this content.

    I haven't actually downgraded with this method but it should work(im ordering a teensy soon).
    ME Coding i currently have 3 ps3 i will be ordering a refurbished fat from game stop to try because it allows downgrading Happy

    Tutriol and confirmed by moderator of ps3hax his quote on the subject:
    Pockets69:i would like to tell that this does work, firstly because eussNL said so, and probably has one installed on his machine, and secondly because defyboy has one installed in his machine
    now if doesn't work one of two things have happened bad wiring, or hashes were not disabled on the .pup with this being said, it works.

    by ps3prodigy ngu member

    PS3 Prodigy;3617951]Just a few things i know that you might want to add to your TUT. When you open your Flash.bin (Dump) in hex editor the Core_OS you need to replace starts at 6F FF E0 in the offset C0000 and when re flashing make sure you only swapped the Core_OS and not the EID,METLDR,BOOTLOADER,VTRM because if you do your Ps3 will be permanently ****ED and you can't just use any 3.55 Core_OS you need to patch the hash checks before you use it.

    PS3 Prodigy;3620267]Phantom i not trying to troll or flame because your right every NOR flash is unique to it's conslole but Coding added my quote where I stated you only swap the Core_OS and you don't swap the EID,METLDR,BOOTLOADER,VTRM which is the only thing that makes the flash unique to your console so his TUT is correct





    TUTRIOL:
    1. Dump your ps3's NOR

    2. Make sure you have a clean NOR dump.

    3. Open your NOR dump in hex editor

    4. search for 6F FF E0 in the offset C0000 and delete the next 7,340,000 bytes( this will delete the whole Core_OS)

    5. Take a lower firmware Core_OS and patch the hash checks.

    6. Copy the new patched Core_OS into your NOR dump

    7. Flash it back to your console.

    Here where you can buy a teensly it $24 Happy cheapest compare to $80 infectus $65 prog
    My review on the item is buy it. It cheap and gets you what you need to do.


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    Last edited by Stack0verfl0w ; 08-12-2011 at 05:24 PM.

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  3. 01-07-2012, 03:59 PM
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    NextGenUpdate
    Might, axtually try this too confusing thought.
  4. 01-07-2012, 04:46 PM
    Super Vegito's Avatar
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    gl, hope you succeed
  5. 01-08-2012, 07:55 PM
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    You talkin to me?
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    so when i switch between OFW and CFW on the dual-boot, do my trophies and such carry over from CFW to OFW and vice versa?