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Downgrading from 3.80 M33 - 5 to 1.50 Official

Discussion in 'Sony PSP - Mod and firmware discussion' started by thecowofe, Jan 24, 2008.

  1. thecowofe

    thecowofe Member

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    Well, I've tried the method, downloading the recovery files and sticking em in the game folder. Then running it from the recovery menu, still giving me a game won't run.

    Someone want to tell me how to downgrade? Thanks.
     
  2. asiol

    asiol Regular member

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    have you ever tried something called

    pandora's battery
     
  3. thecowofe

    thecowofe Member

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    Oh well, yes I have actually, but there was a method on the downgrading thread saying that there was an easier way. Thanks for the response, I got it figured out using Pandora already. Haha. Thanks.
     
  4. wichozzz

    wichozzz Regular member

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    u can run The pandora's battery (Despertar del Cementerio V3)
    to get back 3.71m33-2, then u need (3.71 Recovery folder)
    and save on Memory stick
    so u choice from the M33 Recovery Menu
    this option
    Run Program at /PSP/GAME/RECOVERY/EBOOT.PBP
    then follow the steps and at finsih u will be on 1.50
    ((this is only for fat psp , slim cannot downgrade to 1.50))
    hope this help
     
    Last edited: Feb 1, 2008
  5. CKhaleel

    CKhaleel Regular member

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    Why do you wanna downgrade?
     
  6. thecowofe

    thecowofe Member

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    I uh updated to 3.83 M33-5 and none of my previous .cso wouldn't work plus my umd save files didn't work for some reason so I wanted to go back.
     
  7. CKhaleel

    CKhaleel Regular member

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    Are you slim or fat? Plus, there's no such FW as 3.83...I think you mean 3.80.
     
  8. thecowofe

    thecowofe Member

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    Oops, I'm mean 3.80 and I'm a fat.
     
  9. CKhaleel

    CKhaleel Regular member

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    Then use Pandora. Dont forget to install the IPL.
     
  10. thecowofe

    thecowofe Member

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    ok, Thanks!
     
  11. larrylje

    larrylje Active member

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    Users that are having issues with 3.80 M33 make sure you backup your memory Stick and then format the memory Stick via System Settings then bring the backup files back to the newly formated memory Stick.
     

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