How to upgrade psp cfw to latest?

Discussion in 'PSP - Hacking & Homebrew' started by Shaorin, Feb 21, 2016.

  1. Shaorin
    OP

    Shaorin Advanced Member

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    Nov 25, 2006
    I haven't touched my PSP for many years now and I now I want to start using it again but I still have old cfw it currently uses 3.71 m33-3. It is a PSP Slim & Light model and I used a pandora battery to hack it. How do I upgrade to the latest firmware now?