Custom Firmware 5.50 Prometheus for PSP-2000 and PSP-1000 *Updated*

Sunday, June 20th, 2010
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Update: Custom Firmware 5.50 Prometheus V2 has been released with increased compatibility. Download below.

Not forgetting PSP-1000 and PSP-2000 owners, has released Custom Firmware 5.50 Prometheus for PSP-2000′s (TA88v2 or less) and all PSP-1000′s. So putting an end to all that patching to get 6.20 Firmware games to work. Its very easy to install. From , just extract the CFW 5.50 Prometheus folder from the winrar archive over to your PSP memory card PSP/GAME/ and run the installer.

Source: A9VG

Custom Firmware 5.50 Prometheus Released.


Download: Custom Firmware 5.50 Prometheus V2
(Custom Firmware 5.50 Prometheus V2 - 216.9 KiB - 51,460 Hits)



Download: Custom Firmware 5.50 GEN-D3 Final
(Custom Firmware 5.50 GEN-D3 Final - 27.1 MiB - 1,559,378 Hits)


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Posted in Featured, PSP Custom Firmware

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  • ggctuk

    I cannot download the CFW 5.50 GEN from here.

  • Helmi13

    Can someone tell me,what does this thing do.??

    • RivasJonathan775

      Q: Can someone tell me,what does this thing do.??
      A: it can play your UMD games of Version 6.20, if the UMD wants you to update ofw 6.20, 5.50 Prometheus will let you play 6.20 UMD games

      Hints: I bought Toy Story 3 game, and I have cfw 5.00 M33-4 I started the game Toy Story 3, it says I have Version 5.00 I need to update 6.20, and so I update 5.50 Prometheus, my Toy Story 3 UMD game is starting the game :D

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  • bastard

    Hi there,

    I have a question here. I have a PSP 3000 running CFW GEN-D3 with Prometheus patch – really great :)

    Meanwhile I got my hands on a PSP 1000 and I installed M33-6 yesterday but it won’t run newer games, so I was told to install GEN-D3 on it and it would run the newer games, but as far as I see here, i have to follow the same path that i took on the 3000: install GEN-D3 and then apply the Prometheus patch. Is this correct?

    One more thing: as the 1000 has a CFW now, i can install Chicken R3 so i can switch from CFW’s without using the Pandora battery again, am i right? Asking this because i’ve heard that M33 is better to run older games.

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  • renz0kuken

    my psp2000 is still 3.90 M33-3. What should i do?

    • RivasJonathan775

      update 5.00 M33, update 5.50 GEN-D3, then Update 5.50 Prometheus

  • Uzuki

    Some of my CSOs have a problem with this CFW. When I play Jeanne D’Arc the music is choppy and my save data is corrupted so I can’t load it. However when I run the game under IRShell everything is fine, no choppy music and my save data still loads.

    • Uzuki

      Nevermind. Determined that it was the UMD driver settings.

  • qwertpoiuy

    why doesnt the cheats for gta cheatdevice work????????

  • kazuki_chan8

    my psp 2000 bricks after i use this cfw…..its happened when i want to change back to 5.50 gen D3 using X gen installer…..

    • The Unholy One

      Yeah, same here. Never bricked my PSP before but this cfw does it nicely. Any other way of unbricking other than Pandora battery + Magic MS?

  • pedroportela

    já é possivel usar a camara preta do jogo invizimals em psp desbloqueada ??????????

  • chuf

    Hi There
    Newbie question….upgraded to 5.50 all went ok only problem i have is i have 4 games that all load fine get to the start menu but do nothing after that no matter what buttons you press it just sits there and then eventually repeats the start up again…….
    Does any one have any ideas? (slim was on 4.0 then i took it to 5.03 with CH then took it to 5.50) fifa 2010 works fine and Ironman2 ??
    Thanks

  • revanop

    If I have 5.00 m33-4 how do I upgrade

  • ken_yap95

    can anybody teach me how to update 3.71 m33 2 to 5.50 prometheus? pleas help me :O

  • Emson

    my psp is 2000 version 5.50 gen-d3 and im getting problems with some games it says that “game could not be started” can somebody tells me what seems to be the problem?or what should I do?

  • hesham

    can it play iso files?

  • deathspade

    how do i remove prometheus from my psp i want to go back to ofw i have looked all over the internet and cant seem to find a solution i have a psp 2000 i think but its running prometheus 5.50 anybody give me some help please

  • Lance

    Installed the Custom Firmware 5.50 Prometheus V2 for my PSP-1000. When I was playing God Eater Buster, during the battle mode, any button I press will hang the psp. The psp will shutdown, is it the firmware or the game issue?

  • vayne

    hey why i cant update my psp on phromp i press x but it dint work it just hang!

  • dune dune

    hey …. oh my …. I install that program to my psp but it’s useless
    I open a program but he give me this massge ( 5.50prometheus is only for 5.50 Gen ) ???????????
    ?_? What’s that mean ??????
    and sometime give me this massge ( This program requires 5.50 Gen-D3 sorry press X to exit )
    he joke right XD !_!
    please Heeeeeeeeeeeeeeeeeeeeeeeelp meeee ><
    ———————————————–
    psp : 1000
    system : 5.00
    ———————-
    sometime I play some games but he say ( game could not be started )
    What do mean ?

  • dune dune

    oh my….. there is a problem the program say ( ms0:/550.pbp no found on root of your ms )
    Help me please

  • Candicerimba

    Sorry, I have a question to ask. If I replace my 5.50 GEN-D3 with this Prometheus, will it break my PSP?

    • Peanut

      Backup all your Files incase it does….

  • LAPSTA

    how can i modify my psp 2000 to play games off the memory card?

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