Question about Sony PlayStation Portable (PSP) Console

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Change the psp firmware 4.01 to 4.01 m33

Hello, i cant change my psp firmware(4.01 to 4.01 m33).
how can i do this?

please answer soon

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  • Bradley Shaner
    Bradley Shaner May 11, 2010

    In order to go from 4.01 to any M33 firmware you will have to use "under the table" tactics that are not recognized by Sony. You should do some research on  Pandora's Battery, which will allow you full control over your PSP's firmware and give you the ability to upgrade or downgrade whenever you want to.

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  • 17 Answers

You probably need a pandora battery and a magic memory stick to change it to custom firmware.you cant do it by just updating from
sony

Posted on Sep 08, 2009

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