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Install PSP Custom Firmware 5.50 GEN-B

If you’re one of the people dissatisfied with 5.50 GEN-A and went back to 5.00 M33 then you’ll be glad to see that 5.50 GEN-B has been released, fixed some of your bug worries and added some more features.

Important: DO NOT attempt to install this on PSP-3000 / PSP-2000 TA088v3. YOU WILL BRICK YOUR PSP IF YOU DO.


How to install 5.50 GEN-B CFW on your PSP:

Before you get to install 5.50 GEN-B, you need to install 5.50 GEN-A so read this guide on how to install 5.50 GEN-A first then come back here.

  • Extract the 5.50 GEN-B files to your computer.
  • Copy the PSP folder to your PSP’s memory stick. (Yes, just drag the whole folder there)
  • Disconnect the PSP from USB
  • Run 5.50 UPDATE from under Game on your PSP’s XMB
  • After all process is complete, press X. Your PSP will reboot.
  • Congratulations, you’ve just installed 5.50 GEN-B.

Important: 5.50 GEN-B2 Patch!

After installing 5.50 GEN-B, you can install the bugfix 5.50 GEN-B2. It fixes a bug that prevented the launch of an entire category whose homebrew kit despertar del cementerio.

To install just download 5.50 GEN-B2 and use the same steps above.
Important Notes:

What do I get with Custom firmware 5.50GEN-B?

  • All functions of the official 5.50 GEN-A firmware
  • Bug fix: the VSH menu can now be disabled
  • Pressing Select can start the recovery, bring up the VSH recovery menu, or do nothing at all (for those who wish to use Remote Play between their PSP and PS3)
  • Update via Network (taken from M33)
  • Pandora (converting the battery to/from the Pandora-state) and Shutdown Device options added to the VSH menu
  • Flash1 format option adds a check that prevents a flash1 format if enabled
  • Access [remains open] to the PlayStation Store and Remote Play continues working

Hat off to PSP GEN for 5.50 GEN-B.

Post a comment if you need help or clarifications.

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Comments ( 127 )

Have Something To Say ?

  1. asdasdoi999qw782 Zeidrich July 11, 2009 Reply

    yes…at last there’s a post for 5.50 gen-b!!

  2. jbox.mods JBoxMods July 15, 2009 Reply

    So with going through the instructions here it does come up with “working… blah blah blah”
    then “done with success!”

    but I’m still at 5.00 M33-6

    I’m used to DA’s fw where you have to have the official updater as well (I can only assume it needs to be named 550.pbp and be in the game\update folder), is that not needed in this one? I have it, but the readme for 550 gen-b is 90% french.

    Lil help?

    • atmaxplorer sylv3rblade July 15, 2009 Reply

      no. You just need the 5.50 Eboot file. It’s written on the guide.

  3. asdasdoi999qw782 Zeidrich July 16, 2009 Reply

    i think u need to be in 5.50 gen-a to update to 5.50 gen-b

  4. jbox.mods jbox mods July 16, 2009 Reply

    Yeah, I figured it out… Lol.

  5. pradanang.isprianto pradanang July 17, 2009 Reply

    finally, found it..thanks a lot mate

  6. carolgillies77 carol August 5, 2009 Reply

    can anyone help me i have did what this site as told me download and unzipeped A an B gen and put them onto my memory stick and tell me i can play this game this system does reboot but it not playing games anyone tell how to get this right

  7. carolgillies77 carol August 5, 2009 Reply

    no sorry just brought it secondhand for my son to use

  8. graylingr Graying Richmond August 9, 2009 Reply

    With 5.50 GEN B can I play the GI JOE game?

  9. hoo owerlord August 22, 2009 Reply

    how do i DISABLE the plugins? when i go to the recovery menu> then to plugins> there is only option to go back? i have slim psp and CFW 3.71 m33

    • atmaxplorer sylv3rblade August 22, 2009 Reply

      That simply means you don’t have any plugins to disable. You can jump to installing 5.50 GEN-A then GEN-B right away.

  10. shivan1403 Damian August 26, 2009 Reply

    what is the difference between GEN-B and the firmware 5.00-M33 6??? is GEN-B a cracked software??

    • atmaxplorer sylv3rblade August 28, 2009 Reply

      5.50 GEN-B is the latest custom firmware release, with it, you can play games that need firmware versions above 5.00 and PSN downloaded/bought ones. Access to PSN store is only available via THIS firmware only.

      No it’s not cracked (because this is not an application).

  11. daylon1990 day August 29, 2009 Reply

    how can i tell what motherbord i have?
    i DONT have a pandora battery, or the box it came in, or remember when i got it, OR what OFW it had.

    its a blue madden edition slim.
    with CFW 5.00 m-33 6.

    plz help as i want to play my Madden 2010!!!

    • atmaxplorer sylv3rblade August 31, 2009 Reply

      Madden 2010 requires 5.50 GEN-B to play. Since you’re already on 5.00 M33, just update to 5.50 GEN-A then to GEN-B.

      • micael_qui Qui September 3, 2009 Reply

        sir, i just deed what you said, i’ve updated my PSP from 5.00 m33-6 to 5.50GEN-A(full) then to 5.50GEN-B(full) but the same error still appears when i start Madden 10,. am i doing something wrong? help please.. thanks!. c:

        • micael_qui Qui September 3, 2009

          sorry about that, i mean *did. hehe!. c:

  12. sweetoothz aNoi August 31, 2009 Reply

    im wonderin..
    currently im using CFW 5.00 m-33 6, n im using custom theme..
    if i change to gen a/gen b is the theme still available?
    n can the other games also be played..

  13. superkid987 god!!QQ August 31, 2009 Reply

    umm i have 5.00m33-6 ive done all the things put the folder in disabled plugins and everything but evan gen-a wont work why is that?

  14. victorlim318 vectar September 2, 2009 Reply

    i have a psp 2001 can that be bricked if i put 5.50 gen-b?

  15. weiliang_87 PSP BOY September 8, 2009 Reply

    I used the Shut mode on VSH Menu and now it cannot switch on again is there anyway that i can on it? It is a PSP 1000 with 5.50 GEN-B.

  16. smithbob140 tyler September 9, 2009 Reply

    ok i no this is a dumb question but 5.50gen a and b are cfw right?

  17. smithbob140 tyler September 9, 2009 Reply

    this is cfw right?

  18. theonlyfamousone parth September 10, 2009 Reply

    i still cant play madden 10 using 5.50GEN B.. What do i do please help

  19. micael_qui micael September 11, 2009 Reply

    @parth – just go to your recovery menu then to advance configuration then disable everything. that’s what I did, and it works pretty fine.

  20. theonlyfamousone parth September 11, 2009 Reply

    Sweet!!! THANKS MAN IT WORKS PERFETLY NOW. Thanks alot Micael.

  21. aaa art September 19, 2009 Reply

    thx a lot,u dont even know how many ppl apreciate ur work,c ya

  22. emcees_m1a1 Jack September 25, 2009 Reply

    anyone here could help me?
    i’m using 5.00 M33-6 then i upgrade to 5.50GEN A,the update works fine but then it ask to restart,
    when i restart it the screen turns to blank.i can’t on the psp.i’m using psp slim 2006..
    please help…

  23. emcees_m1a1 Jack September 25, 2009 Reply

    anyone here could help me?
    i’m using 5.00 M33-6 then i upgrade to 5.50GEN A by following the tutorial here,the update works fine but then it ask to restart,actually it didn’t restart it just turn off after i click the circle.
    when i restart it the screen turns to blank.i can’t on the psp.i’m using psp slim 2006..
    please help…
    what do i do…

  24. grungefreak25 VeritasisAcerbus September 26, 2009 Reply

    Yeah okay this is a strange issue and i don’t know if anyone else has it or not…
    Everything Works on my PSP
    i have a PSP PHAT Running At 5.50 GEN-B FULL
    and everytime i try to save a game it being iso or cso anything
    it saves the game as
    i even re-formated and tryed it and it didn’t work…
    any help?

  25. razingpancakes hurp September 30, 2009 Reply

    Is it possible to do this via chickhen?

    • atmaxplorer sylv3rblade September 30, 2009 Reply

      Nope, sorry. This is for PSPs that are completely hackable only.

  26. aveo aveo4114 October 1, 2009 Reply

    i already have 5.50 GEN-a FULL i want to change to gen b / i already save into my memory stick / data corrupted appear 1 cant upgrade how plz help me

  27. aaronx83 aarin October 2, 2009 Reply

    hey this is really important i dont know maybe a link can help me so please tell me how to hack a psp version 5.50 its phat

  28. j.leacy john October 3, 2009 Reply

    Thank you, for the files.. wanted to try fifa 10 before I buy it.. 2 many games are crap, like to try b4 I buy..thanks again.

  29. nikushor Nick October 3, 2009 Reply

    I guess i need some help.. I have a Slim PSP 2004 with TA-085v1, i’ve updated to 5.50 GEN-A without any problems, but now, when i’m trying to update to GEN-B it says CURRUPTED DATA, could you please tell me if there is some solution to it?

    • notetrader Gonzo October 13, 2009 Reply

      You might want to try putting the update on a different memory stick if you have one or make sure that you delete Gen A before putting Gen B on the MS. I tried it to put both on the same stick and one of them always shows up as corrupted.

  30. rock2704 sony October 3, 2009 Reply

    hi sir….i am having cfw5.00m336… can i convert it to 5.00gen b…..also the vice versa

    • notetrader Gonzo October 13, 2009 Reply

      You need to install Gen A first and after Gen A is on you can update to Gen B.

  31. i_stigma Joey October 5, 2009 Reply

    can anyone help:
    i instaled the 5.00 gen b firmware already. the menu said…done with sucess. when i checked the system its alraedy gen b, but stil i cannot play new games like gran turismo and dirt 2, pls help….

  32. god_666 chris October 5, 2009 Reply

    i have the same problem….
    i installed 5.5 gen b2 and i cant play gran turismo … any one know why ???

  33. eugeneoyc OYC October 6, 2009 Reply

    I have the same problem here…what should I do?

  34. gary.thorpe1 gaz October 6, 2009 Reply

    got 3.71 m33-2 and ive tried updatetoo 5.00 m33 also 550 gen won,t let me can you help

  35. pol JOHNDOE October 6, 2009 Reply

    Hey,i have upgraded to gen b2 and now none of the games work on my psp, heard fifa10 shouldwork but nothing just keep getting errors, even fifa 09 nowwont work :O anyone any idead

    • atmaxplorer sylv3rblade October 6, 2009 Reply

      Do you have your UMD mode set to M33 driver?

      • pol JOHNDOE October 7, 2009 Reply

        DOH, forgot about it, many thanks works a treat now 🙂

  36. joewjj joewilliams October 7, 2009 Reply

    i just cant download it. why? should i remove my umd while downloading or not?

  37. xdrezdenx J October 9, 2009 Reply

    I have succesfully hacked and updated my PSP all the way to CFW 5.50 GEN-B (Full)
    I started with 5.00 M33-6 yesterday, and no matter what ISO I downloaded and put on the system (I tried an ISO Directory in the root directory, I tried putting them in the Games directory, I even tried putting them in Games/ISO) they show up as Corrupted files, every one. I’ve tried the new Clone Wars Game, the new NFS Shift, etc, even tried an older game, Pursuit Force, still showed up as corrupted. I have the UMD set to M33 No UMD Needed in configuration, is there something else I missed?

    • atmaxplorer sylv3rblade October 9, 2009 Reply

      If you’re getting a corrupted file error, chances are there is something that’s preventing you from copying the game/s properly. Try using a memory card reader to directly copy your games to the memory stick instead.

    • notetrader Gonzo October 25, 2009 Reply

      A friend had the same problem. Turned out that is data cable was broken.

  38. popsi_2 popsi October 9, 2009 Reply

    can i play my old iso games like nba 09 or mhfu if i update to genb2

  39. notetrader Gonzo October 10, 2009 Reply

    I have upgraded to 5.50 GEN B full and I can’t get to the VSH menu anymore. In the previous version you just had to push “select”. Any help would be appreciated.

  40. notetrader Gonzo October 10, 2009 Reply

    How do you access the VSH menu on CFW 5.50 GEN B. I tried the reset button but it is not working.

    • atmaxplorer sylv3rblade October 10, 2009 Reply

      5.50 GEN firmwares have the VSH menu disabled by default, you need to restart your PSP holding the R button and access the recovery menu. You can enable it there.

  41. ariffasri rezz October 10, 2009 Reply

    how to know if my psp slim is PSP-2000 TA088v3 ?

    n i’m currently using cfw 5.00 m33-6,will i lose any save data if i update to gen-a ?

  42. elhondurankid15 jon October 10, 2009 Reply

    can i upgrade the psp to 5.50 gen-a if im using cfw 5.03m33-4????

  43. seb2509 Seb October 10, 2009 Reply

    You have to make an ISO folder on the root of your memory stick (when you open your memory stick on your computer where the musics PSP and the rest of the files) just make one there and you can make it there and copy all your iso’s and cso’s there

  44. acg1204 abet October 13, 2009 Reply

    i was able to update my psp 1000 to 5.50 gen-b2 , i was able to play it for a few hours now my psp doesnt turn on though the power indicator lits up, HELP PLEASE!!!

    • atmaxplorer sylv3rblade October 13, 2009 Reply

      It’s probably a bad flash. Recover your PSP with a pandora battery.

  45. acg1204 abet October 14, 2009 Reply

    thanks .. but does that mean my psp is bricked?

  46. pol JOHNDOE October 17, 2009 Reply

    Hmmmm, i was playing fifa10 last night and it updated to the latest firmware, now none of my games work and it says i need to download them from the playstation network???? is there a problem with 5.50 gen b that does this? and if so what can i i downgrade to so that this doesnt happen again??

  47. hj_4 tan han jieie October 22, 2009 Reply

    my psp is modified to be able to play games w/o UMD.after installing this,will my psp still be modified or back to normal(only can play original games)???

    • atmaxplorer sylv3rblade October 22, 2009 Reply

      You’ll still be able to play games without the UMD. Before upgrading check if your current firmware version meets the requirements.

  48. bloodzofdeathz izaz October 24, 2009 Reply

    i have updated to gen a without any problems but .. when i updated to gen b .. it say succesful and then when i check the version .. it say gen a – full but not gen b..

  49. hkhabazadeh hojat October 25, 2009 Reply

    the only way is using a pandora battery and a magic memory stick.

  50. joshua_abubo josh October 26, 2009 Reply

    Can you play SVR 10 with this CFW??and can i update my PSP with this if my PSP is PSP 2004?

  51. psycodrrama Ekara November 11, 2009 Reply

    I Had the 5.00 m33-6 update successfully, but when i tried to upgrade it to the 5.50 GEN-a, i got to about 90% of the update and it said there was an error, couldn’t switch off normally so i took out the battery and put it back. Unfortunately it never came back on, the green light stays on for a minute and then it goes off, what do i do, someone please help me. ASAP.

    • atmaxplorer sylv3rblade November 11, 2009 Reply

      Can you enter the recovery menu (Hold R button while turning the PSP on)?

  52. erwin_jong Crimson November 25, 2009 Reply

    Cannot update from 5.50 gen-a naar 5.50 gen-b. Get this while executing update 5.50 gen-b:

    please wait, i need work…
    process failed, cant load module

    i had a bad flash from 5.00 m33.6 to 5.50 gen-a but someone fixed this with a pandora battery and flashed it with 5.50 gen-a.
    Does anyone has an idea which module cant be loaded or why ?

    thanks in advance

    • tremken_khan1013 kenn September 28, 2010 Reply

      help me how to use my iso games on my PSP 3004..

  53. quanumdrum masterpeels December 16, 2009 Reply

    Sounds like you bricked it. You’re going to need a Pandora battery to fix it.

  54. sairay_c ahsai December 17, 2009 Reply

    This is not new but I had to ask since I cannot find a direct answer yet. I updated to Gen B2 but yet system info still showing Gen A(Full). What did I do wrong. I am a dummy with PSP. Pls help.

  55. nolan_naruto p376 December 21, 2009 Reply

    can i upgrade my 5.03 M33-6 to 5.50 genB? im afraid to upgrade it because im using chickhen. =/

  56. tonette_fajardo Cephei January 10, 2010 Reply

    Is it necessary to upgrade to gen b-2 after gen-b?? Thanks!

    • atmaxplorer sylv3rblade January 10, 2010 Reply

      Yep. Especially if you want to upgrade to 5.50 GEN-D3. Even if you don’t plan on upgrading, it’s still recommended to install the GEN B-2 patch.

      • tonette_fajardo Cephei January 10, 2010 Reply

        After upgrading my psp to 5.50 GEN-B2 in the system information, it is still GEN-B (Full).

        is it really like that??

  57. lemonmilk24 Lem January 16, 2010 Reply

    i already upgraded my psp to 5.50 GEN A & now moving to GEN B, but all GEN B files that i got says its corrupted data… why is that? help me,, coz im trying to update my psp to GEN D3

    • atmaxplorer sylv3rblade January 16, 2010 Reply

      Please check your PSP’s current firmware to confirm that you really have 5.50 GEN-A.

      • lemonmilk24 Lem January 16, 2010 Reply

        tnx! this forum helps me alot! :o)

  58. jonsey_7 jonsesy January 16, 2010 Reply

    does this work with psp go???

  59. tonette_fajardo Cephei January 17, 2010 Reply

    I installed 5.50 GEN-B2 but it is still GEN-B (full) in the system version. Is it really like that?

    • atmaxplorer sylv3rblade January 17, 2010 Reply

      Yep. I guess the GEN TEAM forgot to update the version number with GEN-B2 but rest assured that it was successfully installed.

      • tonette_fajardo Cephei January 17, 2010 Reply

        thanks! :))

  60. kelvin8a adhi January 24, 2010 Reply

    i’m trying to upgrade my psp from 5.50 GEN B to GEN-B2, when i try to update it, it said the data is corrupted. Should upgrade to GEN C then to GEN D?

    • atmaxplorer sylv3rblade January 25, 2010 Reply

      No, you don’t need GEN-C to upgrade to GEN-D. The files you’ve downloaded are probably corrupted, try downloading it again.

      • kelvin8a adhi January 28, 2010 Reply

        iis it save to just transfer all downloaded files to the PSP? (overwriting it)

        • kelvin8a adhi January 28, 2010

          I got a problem. When I start the updater it said like this:
          Please wait… i need work…
          Done with success

          Checked the version it still says : 5.50 GEN-B (Full). What should I do?

        • atmaxplorer sylv3rblade January 28, 2010

          You’re installing 5.50 GEN-B2 right?

        • kelvin8a adhi January 29, 2010

          I’ve checked it. It’s the update to GEN-B2

        • kelvin8a adhi February 2, 2010

          um, i mean the answer is yes.

  61. mcnizzty McNizzty March 11, 2010 Reply

    help naman po.. 5.50 gen-B (full) na yung PSP ko pero bat d ko po parin malaro yung Assassin’s Creed Bloodlines…??

    phat PSP 1000 gamit ko…??

  62. gaurav_punjabi97 Gaurav April 6, 2010 Reply

    i have a psp with version 5.03 mhu can i put gen d3

  63. dark_rance Lord Rance April 17, 2010 Reply

    Erm, yes… I have a question… how can you confirm if you already have the GEN-B2 fix if you can only see GEN-B (FULL) in the system information? I just had my CFW updated from a shop a month or so ago, and I just recently downloaded PS:P2 and found I cannot play it with my current CFW, so I wanna upgrade to D3. I’m not sure whether I have the original GEN-B CFW or the GEN-B2 CFW.

    • atmaxplorer sylv3rblade April 17, 2010 Reply

      There’s really no way to know :(. You can however run the installer for GEN-B2 whether you’re still on 5.50 GEN-B or 5.50 GEN-B2 safely. It’ll simply add/overwrite files.

      • dark_rance Lord Rance April 17, 2010 Reply

        Okay. So just download the file posted from above, install like so from the instructions, download XGen updater and install GEN-D3, right? By the way, no need for the Pandora battery thing right? ‘Coz I don’t have that. The shop I went to has that, and they’re the ones who installed GEN-B (Full) into my PSP. That shop’s pretty far from where I’m living though.

        • dark_rance Lord Rance April 17, 2010

          Erm, in addition to my previous post, I won’t need an internet connection while doing the updating as well, right?

        • atmaxplorer sylv3rblade April 18, 2010

          Yep you just need to download the file above :). And yes no need for a pandora battery 🙂

        • dark_rance Lord Rance April 18, 2010

          Cool, had it working now. Pretty nifty too, this updater. I won’t need to journey to a PSP shop just to have a firmware updated. I can just stay home, download and install. Kudos to the developer.

  64. chris2p6h7e1r iSparko June 14, 2010 Reply

    I recently upgraded from 5.00 m33-6 to 5.50 GEN A. My problem is that my select button on my psp is broken and it just keeps pressing. When I was on 5.00 m33-6, I disabled vsh menu because my psp won’t respond the buttons. Then when I upgraded to 5.50 GEN A, I couldn’t disable the vsh menu. So, I can’t access my XMB or the psp. I can only access the “Recovery” mode. Is there another way to run the upgrade without going into the XMB? Please Help Thanks!

    • atmaxplorer sylv3rblade June 14, 2010 Reply

      prolly thru a pandora battery but you should get that fixed 🙁

  65. abdulrehman.1998 carl June 28, 2010 Reply

    please help me to update to psp cfw 5.50 gen-b (full). i am using cfw 5.00 m33-6.
    5.00 m33-6 doesn’t work in my psp .when i start the game it says error ( ).when i run 5.50 gen-b updater it says something like this:
    Please wait… i need work…
    Done with success.
    and exits . my psp cfw stays the same 5.00 m33-6.i hav psp 1001 (phat)

  66. abdulrehman.1998 carl June 28, 2010 Reply

    opps i mean error (80020148)

  67. hadibayor Hade July 9, 2010 Reply

    I have a question=
    I ran IR SHELL on my PSP then I ckicked on PATCH. There I could find 5.50 then I clicked that. But when I went to my SYSTEM INFORMATION of my PSP, it became “5.50 GEN-B(FULL) but it used to be 5.50 GEN-D3, can someone please help me??

  68. lucas55gv Lucas July 10, 2010 Reply

    hi folks, humm i have a 2001 psp slim that i want to hack it down, but i dont know if i can ? and whats the right thing to do? and where to go??? please someone help me!!!!!!
    email me = [email protected]

    • lowenhartz pete August 20, 2010 Reply

      Hi..looks like the link to 5.50 gen B is broken. could you reupload it please?

      • atmaxplorer sylv3rblade August 20, 2010 Reply

        Hi, I’ve re-upped the file. Please check the new link 🙂

  69. Jeremy81240 J-Man January 17, 2011 Reply

    Im running 5.50 GEN-B(Full), when i try to remote play it comes up with a message saying A software update is required, when i run for a network update, it says it has found a later version. If remote play just not available for my version or do i need to download something?

    • atmaxplorer sylv3rblade January 17, 2011 Reply

      No, don’t update, it’ll install the latest OFW on your PSP. Try updating to 5.50 GEN-D3 as 5.50 GEN-B hasn’t addressed this.

      After updating:
      Register your PSP then go to the Network on your PS3 (not Network under Settings) and use Remote Play (its above Internet Browser). Then on your PSP go to Remote play and pick the PS3 to connect.

      • Jeremy81240 J-Man January 17, 2011 Reply

        Thanks for the help, I ended up having to start from gen-b2 to gen-d up to d3. I couldnt go straight from gen-b straight to gen-d3.

  70. calvin_okot Noobhacks August 10, 2011 Reply

    Pleease help! I want to play Need for speed underground rivals for some time now there are a few problems with the firmwares ive tested. I have a psp phat model and 5.50 GEN-A on it. The real problem is that when i try to update to 5.50 GEN-B it says “Please wait….. I need some work” then it says “Done with success” but then it sends me back to the XMB and im still on 5.50 GEN-A. Please help ASAP thanks in advance

    • calvin_okot Noobhacks August 10, 2011 Reply

      Oh sorry ive just realised that it was already on 5.50 GEN-B but could you recommend a firmware that works for need for speed. Once again thanks!

    • calvin_okot Noobhacks August 10, 2011 Reply

      Now its doing the thing i said 2 posts ago when i tried to update to GEN-B2

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