Custom Firmware 5.50 GEN-D2 to GEN-D3 switcher

Friday, June 11th, 2010
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Custom Firmware 5.50 D2 to D3 switcher released.

Red Squirrel has released a cool PSP homebrew application that can switch you from Custom Firmware 5.50 GEN D2 to Custom Firmware 5.50 GEN D3 if need be. Why would such a application be handy? Well as some games have issues running under D2 or D3 its handy to switch over to what ever Custom Firmware is compatible with the game your looking to play etc.

Release notes:

D2-D3 Switcher is a simple PSP homebrew to switch easily from CF 5.50GEN-D3 to -D2 and viceversa.
It works changing only the peagasus.prx in Flash0. Returning to D2 (using the D2′s peagasus.prx) you will can use those savedatas that appear corrupted in D3 or play those games that have issues with D3 (such as Jak and Daxter, Metal Gear Solid Peace Walker, etc…). But remember to come back to D3 when you want to play those modern games that require it

Source: PSP-Cheats.it


Download: Custom Firmware 5.50 GEN-D2 to GEN-D3 switcher
(Custom Firmware to GEN-D3 switcher - 229.7 KiB - 13,437 Hits)


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Posted in Featured, PSP Custom Firmware

  • ieru

    Wait so this switches the firmware without the use of a pc? Or is it you need to swap those .prx’s If this works then i’ll be jumping on this asap.

    • http://pspslimhacks.com/ PSPFan

      Yep thats the whole idea of it.

      • Mrz.Rastrii

        i need help installing it to my psp

  • roldan862000

    so ur base/installed cfw should be 5.50-D2? or 5.50-D3?
    haven’t tried it yet eh..

  • searcam01

    Awesome! Love This. Makes switching from d2 to d3 a lot shorter. Thanks!

  • magorem

    GEN D3, corruped data for GTAVice city, man cmon, thats like one of the best games for the psp, even better than liberty city.

  • XspeedPL

    I think you must have GEN-D3 to use this, not D2. It only switches file peagasus.prx, so this can’t be used to update your GEN-D.

  • BlueBomberX

    can you switch from 5.03 Gen-C to 5.50 Gen-D?

    • funk blast

      Why would you want to?

  • orestes

    im using 5.50 gen-d3 .. copied the switcher into my mmc… run it… it says now im using the gen-d2 ..
    when i check system information, my firmware still shows gen-d3 ..

    is it suppose that way? or it will change to confirm the switch works?

  • djmrlong

    This is an excellent program…… Thanks for this one.
    Is it possible to have another program like this for GEN C since like GEN D 3 some games just don’t work

  • DontBeHero

    Hey please i need help,
    I put this on the psp then I run ,while running it freezes at the sony logo and it shuts off. This also has been happening to my other utilities. Please I need help and thank you for your time. (soz if this is a nooby question).

    • se7en

      That’s what im experiencing right now on my PSP 1001 Fat. Stucked on PSP gameboot, freezes, then shutdown.

      Im trying to downgrade my PSP with pandora and mms, doesnt seem to work to work now beacause of this.. Maybe I need to brick my PSP again just for it to work. Too bad… this would have been a great app.

      • Ranaquajaro

        Happened to me to but fixed. Turns out that if you get an error about peagasus.prx it deletes it. To fix it just re-download it and put it in your flash0:\kd

        A link if it is allowed:http://www.megaupload.com/?d=RLQFXQW4

  • djmrlong

    What firmware are you running ?
    Try format memory card & try again

  • myself10

    where should i put the downloaded folder/file? there is no instruction on how to install it.. pls help..

    • evonracer

      Put it in the game folder in your memory card its under the psp folder under “GAME” folder

  • myself10

    thanks a lot bro! big help! Ü

    • Otaru

      So I just put the folder with the 4 files on GAME and run the installer and thats it? No risks at all?

      • evonracer

        tats it and you’ll c the option pops up….works for awhile for me until my d-pad don’t work no more..i think this switcher is a bug problem used it at ur own risk…my psp is mess up now…dammit..lol…

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  • evonracer

    ever since I used this maybe its just my psp or theres a virus bugged on this software d2+d3 switcher? hmm….my psp d pad couldn’t movie in the xmb bar ……somethings not rite here…..any help ya?

    • evonracer

      my psp d pad couldn’t move(malfuction) in the xmb bar ……somethings not rite here…..any help ya?

  • Otaru

    Thank god I havent tried it yet, thanks a lot Evon. Idk what could it be wrong with your psp. what model is it?

    • evonracer

      psp phat 1001 version or 1000…

      • Otaru

        crap. mines 1001 aswell >_>

  • iGEN

    I wasn’t surprised when it didn’t work on my 1001. I still have a Slim though. I think the Phat uses a different pegasus.prx.

    • iGEN

      Yeah, I also screwed my PSP 1000. Hopefully my Pandora Batt will be useful here.

  • Otaru

    Did you guys upgraded your PSP in order? (Meaning GEN-D,GEN-D2,GEN-D3) If you didnt, you will be missing the required previous prx files needed for the tool to work and risk a POSSIBLE brick. At least thats what my teacher, Klown said. Be careful and GL

    • desperadolive

      this “GEN-D,GEN-D2,GEN-D3″ update sequence didnt help at all. the application Does not work

  • jorefe12

    I REALLY NEED HELP! My PSP is kinda bricked…
    I tried this in order to play MGS Peace Walker (D3–>D2) but it said that i didn’t have the prx file and now the PSP gets stuck on the PSP logo??
    IDK how to fix this, can anybody tell me??
    Thanks!!

  • jorefe12

    I REALLY NEED HELP! My PSP is kinda bricked…
    I tried this in order to play MGS Peace Walker (D3–>D2) but it said that i didn’t have the prx file and now the PSP gets stuck on the PSP logo??
    IDK how to fix this, can anybody tell me??
    Thanks!!

    • ChaosxPaladin

      I had the samer problem man, but don’t worry I managed to fix it. The reason the games won’t work is because the prx file that was supposed to be replaced is missing. To get it back, but re-run the 5.50 GEN D3 update and everything should be alright.

      • killer42

        love this software man this soft is so cool and its workig fin in ma psp :)

      • jorefe12

        thanks man!! I was really scared!
        But now everything is better with 5.50 prometheus!

  • Mrz.Rastrii

    can somebody help me, i dont know how to install this firmware

  • noxusrules

    Does anybody knows if there are problems between the Gen D2-D3 switcher and the cxmb plug-in?

  • desperadolive

    this update sequence GEN-D,GEN-D2,GEN-D3 and GEN-D2 to GEN-D3 switcher doesnot work. the Application does not change the firmware