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Installing Prometheus ISO loader

This guide will help you install the Prometheus ISO loader on your PSP.

You must be on the following firmware for PROMETHEUS ISO LOADER to work:

Download: Prometheus ISO loader

Installing Prometheus ISO loader on your PSP

  • Extract the Prometheus ISO loader onto your PC
  • Copy the extracted folder to x:\PSP\GAME (x is your memory stick or the PSP Go‘s storage)
  • On your XMB, run the Prometheus ISO loader
  • Once you’ve run the loader you will get the screen you see below in which you can run ISO games off your PSP’s memory.
  • Important Note: You need an ISO folder in your PSP’s memory. Simply create one and dump your PSP ISOs/CSOs there.
    Enjoy your Free PSP Games :) .

Be sure to check out the Prometheus ISO loader compatibility guide.

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Comments ( 24 )

Have Something To Say ?

  1. nikkie_nicks.cute nixx22 May 29, 2011 Reply

    the file is corrupted what will i do?

    • atmaxplorer sylv3rblade May 29, 2011 Reply

      What is your current firmware version? Check the system information your PSP’s menu.

  2. m_a_r_kguy mark sousa June 2, 2011 Reply

    how do i get the iso/cso on my psp?

  3. curtis-tse Shinji July 17, 2011 Reply

    Hiya major problem, when booting into game redirects me to XMB, any solution ?

  4. coolaqua7 Ness August 18, 2011 Reply

    when i enter into the prometheus iso loader menu the screen freezes and i am unable to do anything from there. I have to restart my device. Can you please help me with this problem?

    • atmaxplorer sylv3rblade August 18, 2011 Reply

      What is your PSP’s current firmware?

      • coolaqua7 Ness August 19, 2011 Reply

        i have the 3001 version 6.35

  5. luh.rzeznik luíza August 24, 2011 Reply

    When I enter prometheus iso loader, it’s as if my psp has just started.
    The logo Playstation appears, freezes the screen, and then shut down.

    My firmware is 6.2 and my psp is 3004. ):
    what do I do?

    • atmaxplorer sylv3rblade August 25, 2011 Reply

      What is your current firmware? 6.20 or 6.20 TN?

      • luh.rzeznik luíza August 25, 2011 Reply

        Well, my psp says: System Software Version 6.20.

        Is that why it’s not working?

        • atmaxplorer sylv3rblade August 25, 2011

          Yes, you need to have Hen or LCFW installed. Please install this first

  6. ruifernandes.19 Rui August 26, 2011 Reply

    my psp is psp 3004 with version 6.31 and the iso loader dont run, says file is corrupted.. why?

  7. sacred_heartphoenix geialan August 30, 2011 Reply

    how can i play game in version 5.00 m33-6 i ust downgrade my psp from 6.39 to 6.20 to 5.50 to 5.00 but i cant play any ISO games can u plss help me

    • atmaxplorer sylv3rblade August 30, 2011 Reply

      Can you clear that up again? You downgraded to 5.00? What is the current firmware that your PSP is giving you?

  8. LeoX_9 Alexander105 September 4, 2011 Reply

    I currently have cfw 6.20 TN-A installed onto my PSP GO PSPN1001. I also have Prometheus ISO Loader installed and it boots fine, but I cannot figure out the file directory for my ISO’s to go into. All I really want is monster hunter portable 3rd to run.

  9. armstrong5454 Knightsurfer October 29, 2011 Reply

    Is firmware 6.35 possible to remove? or am i stuck with it now? if its possible to revert to normal updates how do i go about this?

  10. seth.shintoh stryker01 February 25, 2012 Reply

    the prometheus iso loader dont show anything i put on my Iso folder.. i checked the compatibility guide and it says it work.. btw my psp is psp 3001 6.20 and i used 6.20 tn-d

    • atmaxplorer sylv3rblade February 25, 2012 Reply

      Can you post a screenshot of the files in your ISO folder?

  11. ndikz nixxx October 8, 2012 Reply

    file link is not working,

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