Atma Xplorer

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HowTo: Upgrade your PSP to 6.35 OFW

Here are the instructions on how to upgrade your PSP to 6.35 OFW so you can install any of the following Hen or LCFW so you can run Homebrew or ISO backups of PSP games:


Download 6.35 OFW for your PSP model

How to upgrade your PSP to 6.35 OFW

  • Extract the FW zip file on your PSP
  • Copy the resulting EBOOT.pbp to x:\PSP\GAME\UPDATE (x is your memory stick or the PSP Go‘s storage)
  • On your PSP, run the 6.35 updater.
  • Follow on screen prompts
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Comments ( 44 )

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  1. princelyj Noblesse June 18, 2011 Reply

    First let me say i love this site XD. I tried upgrading my psp to 6.35 ofw n this is what comes up “The software of your PSP system is version 9.90. There is no need to update”
    ( I dont relli know much (hmnn mabye anything) about this type of stuff but 9.90 sounds a bit high so i went in the system settings n it says the systtem software is 5.50 prometheus. so can u help a dude out ?

    • atmaxplorer sylv3rblade June 18, 2011 Reply

      Follow the instructions on this page: Install 5.50 GEN-D3 but instead selecting “Flash install CFW 5.50 GEN-D3“, choose “Flash install 5.50 OFW”. It will revert you to the 5.50 OFW and by then you can start upgrading to 6.35 OFW.

      • princelyj Noblesse June 21, 2011 Reply

        Thank you very much XD

  2. mep_hias Elson June 21, 2011 Reply

    ….how come the file is corrupted in PSP game menu, I thought the CFW is compatible with all PSP Model….T.T
    PSP-1000; Version 6.20 pro-b6

    • atmaxplorer sylv3rblade June 21, 2011 Reply

      Did you extract it properly? Also, remember to turn off your PSP before installing. You need to be on OFW or you’ll brick your PSP.

      • mep_hias Elson June 21, 2011 Reply

        Thx bro^ ^ I already solve my problem…
        Now my PSP vers. is 6.35 PRO B6…;)

  3. dennisumlas blablabla August 29, 2011 Reply

    6.35 ofw for my psp 2000 and when i extracted it my psp cannot read the updater it says corrupted file -_-

    • atmaxplorer sylv3rblade August 29, 2011 Reply

      You’re already on 6.35 OFW?

      In any case, the updater will say that if:
      1.) You have put the eboot.pbp file in the wrong directory
      2.) The file is actually corrupted.

      • dennisumlas blablabla August 29, 2011 Reply

        sorry for dumb questions im a newbie in this stuff but i just downloaded 6.60 in my psp -_- is it possible for me to play my games again?

  4. dennisumlas blablabla August 30, 2011 Reply

    hey its me again haha i downgraded my psp 2k 6.60 to 6.60 pro-b9 (model:2g) can i change from 6.60 pro-b9 to 6.35 hen or 6.31 hen? please help mee

    • atmaxplorer sylv3rblade August 30, 2011 Reply

      Technically you haven’t downgraded since you’ve just installed 6.60 PRO-B9. To downgrade you need to go through the downgrade process detailed in this guide

  5. br1nk0fdespair Michael September 9, 2011 Reply

    if we’re upgrading our PSP from the OFW to CFW, is it okay to leave the UMD inside? or I must take it out first before doing it?

  6. info N3RVE September 19, 2011 Reply

    Thanks for the post. 🙂

  7. GSmasterAxe EliteAxe October 1, 2011 Reply

    First of all, I have 6.31 OFW. I was able to use Prometheus Iso Loader with HEN but it won’t boot Monster Hunter Portable 3rd. I saw somewere I need 6.35 but will my save files still work for my other games? I don’t want to install 6.35 if it breaks my saves.

    • GSmasterAxe EliteAxe October 4, 2011 Reply

      Well I tried anyway and my saves work. I even was able to make Monster Hunter work! Thanks for all the tutorials on this website.

  8. ivannarrogante vanz November 3, 2011 Reply

    i got a 5.03 OFW but it says that the file is corrupted? how can upgrade it to 6.35?

    • atmaxplorer sylv3rblade November 3, 2011 Reply

      Please check if the file is in the proper directory (and that you have extracted the zip file)

  9. mjp_slayer Mansoor December 25, 2011 Reply

    ahm will it be ok if i update my psp3000 ver.6.30 to 6.35 ofw ?

  10. mjp_slayer Mansoor December 25, 2011 Reply

    plss rply asap

  11. simplecydney_21 cydney January 8, 2012 Reply

    hi. i’m new here. i have my psp 2000 verion 5.5o gen-d3, then i just want 2 know if i can upgrade it from version 6.35 b4 or any 6.35 version compatoble in my psp 2000. pls help me!!!!!!!!!!!!

  12. simplecydney_21 cydney January 8, 2012 Reply

    hi. i’m new here. i have my psp 2000 verion 5.5o gen-d3, then i just want 2 know if i can upgrade it from version 6.35 pro-b4 or any 6.35 version compatoble in my psp 2000. pls help me!!!!!!!!!!!!

  13. abgosain bipin January 8, 2012 Reply

    where can i find psp games…to download(no torrent plz)

  14. xerox1028 Xerox January 13, 2012 Reply

    I have a 3001. I can still use the 3000 download, right?

  15. brionesbrenda Kenshin February 16, 2012 Reply

    do you need to format your memory stick?

    • atmaxplorer sylv3rblade February 16, 2012 Reply


      • brionesbrenda Kenshin February 17, 2012 Reply

        when you upgrade your psp does it need to be fully charged?

        • atmaxplorer sylv3rblade February 17, 2012

          Not really but it’s recommended to charge to at least 75% when upgrading your firmware. That way if anything happens you won’t brick your PSP by having the battery discharge during the process.

        • brionesbrenda Kenshin February 18, 2012

          bago i upgrade kilangan ba uninstall yung ofw muna

        • brionesbrenda Kenshin February 18, 2012

          cfw pla

        • atmaxplorer sylv3rblade February 18, 2012

          Need na at least same OFW version sa LCFW na gusto mo iinstall (i.e. 6.35 OFW for 6.35 prob-10)

  16. starktagle Sena February 17, 2012 Reply

    is it permanent or temporary

  17. elisha_riza BlazeGX March 28, 2012 Reply

    Sir! I’m actually afraid to upgrade my psp! I have 5.03 prometheus-4. How long will it take to upgrade and can I?

    • atmaxplorer sylv3rblade March 28, 2012 Reply

      The upgrade, if you wish to push through, should take longer than 5 minutes of installation (upgrading to 6.35 then installing the latest pro build)

  18. bobbyharsono Seishirou June 28, 2012 Reply

    I have psp 3002 with 5.03 prometheus FW, i forgot the rest of system details, and i didn’t bring my psp, so 🙂

    Ive read few forums and they said if my psp should safely updated by semi permanent CFW, and they recommend 6.35 pro or 6.39 pro… WHen i tried to update it, i couldnt found the OFW of it..Your link is blocked btw..could you tell me where to get OFW of 6.35 or 6.39??? 🙂

  19. kkk modder January 21, 2013 Reply


    • atmaxplorer sylv3rblade January 21, 2013 Reply

      I’m not sure why the 6.35 files we’re deleted but the other versions are still up.

      In anycase, I’ve reuploaded them to mediafire.

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