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3.71 M33

 

Custom M33 Firmware

Custom PSP Firmware (CFW) 3.71-M33 for PSP Slim and Lite and PSP fat.

Requirements:

A PSP Slim with 3.60 M33. Or a fat PSP with 3.52 M33-3 or 3.52 M33-4. Previous versions of M33 won’t work, due to a bug that affects them and OE

Details:

Adds the ability to change CPU speed, Play PS1 games, play Homebrew games and apps, load legal ISO backups, load CSO’s (Compressed ISO files) and run emulators etc.

Change Log:

– Now uses 3.71
– VSH Menu is not longer launched using HOME key, but using SELECT now. This is to not interfere with the XMB function of home, which is now more useful in this firmware.
– Psp Slim: umdcache was allocating memory even when homebrew was launched, wasting memory that homebrew programs may want to use. Now umdcache module is stopped before it can allocate any memory, only in the case homebrew is launched.Also, memory is unprotected for user memory usage by M33 core (only when homebrew is launched).
Developer, for a sample of how to use the extra memory, see the extra ram sample of the M33 sdk.- Both version boot now from 3.XX ipl, and are independent of 1.50.

Download: (all files are required)


Instructions:

See Readme.txt inside M33 zip.

Source:

M33 / Dark_AleX

Digg!


31 Comments
  • 1
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    waz shah
    October 16, 2007 at 7:58 pm

    just drag n drop? Custom Firmware 3.71 M33 update 2 (1124) how u use

  • 2
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    tommy
    October 19, 2007 at 2:38 pm

    wow very helping for psp lover

  • 3
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    James
    October 19, 2007 at 3:15 pm

    You need either a PSP Slim with 3.60 M33. Or a fat PSP Slim with 3.52 M33-3 or 3.52 M33-4

  • 4
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    Simon
    October 22, 2007 at 9:31 am

    “A PSP Slim with 3.60 M33. Or a fat PSP Slim with 3.52 M33-3 or 3.52 M33-4″
    How can you have a Fat PSP Slim?

  • 5
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    PSP-Fan
    October 22, 2007 at 9:56 am

    fixed, that was an error.

  • 6
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    koshmar
    December 7, 2007 at 2:17 pm

    i need help. i bought a psp 2000 with fw 3.71…how can i install a custom fw ???

  • 7
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    JOE
    December 8, 2007 at 7:49 pm

    hey i DLed the psp official and m33 custom and none of them have any readme files. im not sure where to put the files and my memory stick didnt have a GAME folder so i made one but still. help me out

  • 8
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    Joel
    December 17, 2007 at 10:43 pm

    - Copy the program to /PSP/GAME/UPDATE
    - If you have 1.50 addon, make sure you have the kernel of game folder configured to 3.71, or the
    program will not even start.

    what after? and whats the 1.50 addon?
    answer back plz

  • 9
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    Joel
    December 17, 2007 at 10:46 pm

    oh, and how do i start the update?

  • 10
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    Joel
    December 17, 2007 at 10:48 pm

    you know what, just forget it :D
    thanks for the softwate and instructions, now i get it…
    and its done ;)

  • 11
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    skinn3r
    December 31, 2007 at 1:55 pm

    need help guys, my PSP is FAT version 5.71, not 5.71 m33-1, 5.71 m33-2. I want to update my PSP to 5.71 M33-2,3,4 or later. Where can i download the files so my PSP become “5.71 M33 -2 or later?” take note my PSP is “ver. 5.71″ I know before you can update to 5.71 M33-2 or later you need 5.71 M33. Hope You Can help me…

  • 12
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    Scott
    January 1, 2008 at 3:38 am

    need help..okay, i bought a PSP Slim, and it has no custom firmware EVER…so what do i do?

  • 13
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    skinn3r
    January 1, 2008 at 8:51 am

    I download 5.71 M33, but when i install it, it say there is no need to update your version is already 5.71. Can someone help me… what should I do so that my PSP became 5.71 M33..

  • 14
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    King Z
    January 5, 2008 at 1:41 am

    Yeah my question is about getting this firmware without any of the other prerequisites since when I bought my psp slim it came with 3.71.

  • 15
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    Jacob Borrett
    January 8, 2008 at 12:02 am

    I have firmware version 3.80 on my brand new psp slim Daxter Version. Whats the first step in getting the firmware 3.71mm-2..Somebody please help..

  • 16
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    PSP-Fan
    January 8, 2008 at 12:53 am

    First step, visit this page http://pspslimhacks.com/psp-tutorials/
    It has guides to get you started

  • 17
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    prudhvi
    January 11, 2008 at 3:20 am

    psp rockssssssssssssssss

  • 18
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    jose
    April 21, 2008 at 9:37 pm

    I have firmware version 3.95 on my brand new psp slim Daxter Version. Whats the first step in getting the firmware 3.71mm3-2..Somebody please help..

  • 19
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    Download Problem
    May 28, 2008 at 7:17 pm

    Stupid question, but how do you download from this site. Link doesnt seem to work.

    Thanks

  • 20
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    mike
    June 4, 2008 at 3:38 pm

    hey,can anyone help me.I accidentally update my psp to version 3.73..Its the official version.How can i downgrade it back so i can play games without using a umd..Please help me..thanx

  • 21
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    Assassin69
    June 8, 2008 at 4:05 pm

    I only have a Versoion 3.60 not a 3.60 M33 how do i switch it?

  • 22
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    shawn
    August 5, 2008 at 4:51 am

    hey i download 3.71 m33 on my psp slim but it wont let me get in to recovery mode on my psp

  • 23
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    lloydg
    August 29, 2008 at 6:11 am

    OMG…im sooooo confused…i want the cfw on my psp fat…but…i haveve no clue how to get started…its a new psp fat by the way. cacan someone plz help…step by step would be nice

  • 24
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    lee c
    September 1, 2008 at 11:58 pm

    I hav a psp slim and lite with cf 3.71 but i cant access the psp network without updating, is it safe to just psp update to 3.73 as prompted in games on my psp?

  • 25
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    Charles
    October 4, 2008 at 2:20 am

    OK, I have the CFW on my PSP Slim. And I have made back-ups of my UMDs. I’ve searched this site and can’t find an answer; how do you play the UMD back-ups? They are in the form of an ISO, is there another program that I need to make them readable from the memory stick? Thanks a lot for this site, it really is awesome! ^_^

  • 26
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    younes
    October 15, 2008 at 12:54 pm

    goood work thanks

    • Overlay
      anthony
      May 20, 2009 at 10:10 pm

      where’s the download button

  • 27
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    PSP SLIM
    November 23, 2008 at 2:35 am

    Hi i have my psp version 3.71 and i want to have it now in 3.71m33 what i have to do

    from psp slim

  • 28
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    Visqo
    March 31, 2009 at 12:32 pm

    i recently downloaded the final fantasy vii games but i don’t know how to get it to work on my psp. i copied it into my memory stick duo PSP/GAME but when i access the game aspect of my psp, it tell me i have no games on my memory stick duo. so i was wondering if whether i needed another software to enable me play the game. please help me out

  • 29
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    Visqo
    March 31, 2009 at 12:34 pm

    oh i forgot. i a slim psp with version 3.98

  • 30
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    anthony
    May 24, 2009 at 3:49 pm

    where’s the download button plz

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