Thread: can i upgrade my PSP 1000 5.50 prometheus to 6.60 CFW?

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  1. #1 can i upgrade my PSP 1000 5.50 prometheus to 6.60 CFW? 
    Junior Member
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    Oct 2012
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    hi guys, can i upgrade my PSP 1000 5.50 prometheus to 6.60 CFW?
    if yes, will it work fine / perfectly on my unit?
    will it encounter any problems along the way?
    can u provide me instructions on how to do it?
    thank you very much!
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  2. #2  
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    PSP Elite Hacker El Guapo's Avatar
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    You will need to perform the GEN BYPASS to update to 6.60
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  3. #3  
    Junior Member SyntheticOxygen's Avatar
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    I have also a psp-1000 with 5.50 prometheus4 and when i try to preform the GEN BYPASS,
    by changing the version.txt in vsh/ETC from 9.90 to 5.50 the following happens.

    When rebooting the psp it wont boot (i have a softmod pandora battery)
    When i use the adapter cable with the battery it wont boot.
    Only when i remove the battery and only power from the adapter it will boot again.

    I tried again but this time i used Hellcats recovery to change my battery to a normal one again.
    And it still wont boot from battery only.
    So i booted on adapter and changed the vsh/etc version.txt back to 9.90 and now it will boot from battery again.

    Is there a way for me to downgrade from prometheus back to 5.50 GEN D3 so i can install OFW 5.50?
    Programmers are in a race with the Universe to create bigger and better idiot-proof programs, while the Universe is trying to create bigger and better idiots. So far the Universe is winning.- Anonymous

    psp-1004 CFW 5.50 Prometheus-4
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