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how to downgrade version 3.90 to 3.71 or lower

Discussion in 'Sony Handhelds' started by ewodge, Feb 19, 2008.

  1. ewodge

    ewodge Member

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    hi guys, can you help me on how to downgrade my PSP from version 3.90 to 3.71 or lower. thanks
     
  2. cee43ja1

    cee43ja1 Regular member

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    pandora's battery and magic memory stick is the ONLY way to downgrade 3.51+ firmwares.

    use THIS guide to downgrade/install custom firmware.
     

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