3.90

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    How to hack 3.90 firmware?

    PSP model is 2004, firmware 3.90. How to hack it to play iso/cso backup games? Thank you in advance.
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    Help on updating PSP-1001 3.90 M33-3 to newest

    Hi i was reading around since i just picked up my old PSP again and am looking into playing it again, im wondering how i can update my 3.90 M33-3 psp to the latest firmware to play hacked and homebrew? Any tutorials for a newb i havent changed the firmware in like two years and have no idea what...
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    Currently have 3.90 M33-2 what's the latest custom firmware and how to upgrade?

    Have not been using PSP for a while, so have been away from the firmware updates.... Currently have 3.90 M33-2 what's the latest custom firmware and how to upgrade? This is for the original (fat) PSP-1000. Is 5.50 Gen-B2 the latest? and can I go directly from 3.90 M33 to Gen?
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    Need Help! to upgrade old cfw 3.90 m33-2

    Please help out, haven't used my psp 1000 regularly in 3yrs and my current firmware is 3.90 m33-2 I have read numerous instructions but I fear if I mess up or upgrade incorrectly my psp would brick and become useless. How would I be able to upgrade the firmware and use my psp to its max...
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