how can downgrade PSP offical 4.01 to 4.01m33 ?

Discussion in 'Sony PSP - Mod and firmware discussion' started by bilkurd, Aug 19, 2008.

  1. bilkurd

    bilkurd Member

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    any1 know how can downgrade PSP offical 4.01 to 4.01m33 ?

    plz help me
     
    bilkurd, Aug 19, 2008
    #1
  2. scatman10

    scatman10 Regular member

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    Buy a pandora battery and magic memory stick online.
    The only way to downgrade that firmware is to use pandora batt and mms.
    What psp model do you have fat or slim?
     
    scatman10, Aug 19, 2008
    #2
  3. bilkurd

    bilkurd Member

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    PSP slim with offical 4,01 fw
    i have pandora and MMS but didnt work
     
    bilkurd, Aug 19, 2008
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  4. cee43ja1

    cee43ja1 Regular member

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    you cannot downgrade any 4.00+ official slims. you will have to wait for a new universal unbricker.
     
    cee43ja1, Aug 19, 2008
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  5. scatman10

    scatman10 Regular member

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    Oh thats totally my bad. Thats true you can't downgrade or install cfw on new psp's with new fw. You prolly have the new psp mobo too! :(
     
    scatman10, Aug 20, 2008
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  6. Donaldo

    Donaldo Regular member

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    is that true ??? holy christmas i didn't know that. ...

    my brand new PSP Slim (unmodded waiting for pandora battery) says:

    System Software: Version 3.95

    so I will be able to install custom FW right ?? god i hope so.
     
    Donaldo, Aug 20, 2008
    #6
  7. JMobile

    JMobile Regular member

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    You have the new TA-088 cpu that is unhackable. Dark Alex has not come up with a update yet. You'll have to wait for now or return it for something else.
     
    JMobile, Aug 21, 2008
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  8. scatman10

    scatman10 Regular member

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    Are you sure its the cpu? or is it the mobo and everything on it? Not trying to be a smart ass just trying to get details
     
    scatman10, Aug 21, 2008
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