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PSP 3.51 M33 Custom Firmware Released

greg | July 14, 2007

Update: Experiencing problems with WiFi on homebrews? Then re-download the custom firmware package. Now bundled within the zip is ‘m33wlanfix.rar’ — it corrects this known issue.


Russian hackers, who call themselves the M33 Team, have developed their own custom firmware based on Sony’s official 3.51 release. Much like the work of Dark_AleX, you’ll receive all the latest and greatest features packed with 3.51, as well the remaining underlying weaknesses found in the 1.50 kernel. Enjoy the best of both worlds! There ain’t nothin’ to it but to do it.

The installation procedure closely resembles that of Special/Open Edition (SE/OE):

  1. If you are under official 1.50 PSP firmware, copy kxploitpatcher and kxploitpatcher% folders from “1.50only/” of this download to your “ms0:/PSP/GAME/” and use it.
  2. Once done it, or if you are under any Special/Open Edition, copy M33CREATOR folder to your “ms0:/PSP/GAME” (1.50fw) or “ms0:/PSP/GAME150″ (SE/OE)
  3. Download official 3.51 eboot, rename it to 351.PBP and place it on “ms0:/PSP/GAME/M33CREATOR/” or “ms0:/PSP/GAME150/M33 CREATOR/”
  4. Download official 1.50 eboot, rename it to 150.PBP and place it on “ms0:/PSP/GAME/M33CREATOR/” or “ms0:/PSP/GAME150/M33 CREATOR/”
  5. Go to Games/Memory Stick on your PSP, and execute “3.51 M33 CREATOR”. Once finished, it will go back to the XMB.
  6. Go again to Games/Memory Stick on your PSP, and execute “3.51 M33UPDATE”. You’ll have to press X to agree to the installation.
  7. When finished, press X to shut down and reboot manually.
  8. Enjoy your 3.51 M33 ;)

Thanks to everyone who emailed me; you know who you are. And most importantly, thanks to Team M33 for resuming the work of a legend, Dark_AleX.

FLASH WITH CAUTION. USE AT OWN RISK!

Download:
PSP 3.51 M33 CFW (with WiFi fix)
3.51 Update EBOOT
1.50 Update EBOOT

- source: pspx.ru

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476 Comments »

Comment by wayne
2007-07-14 16:12:08

Great!!!!

Comment by csta
2007-07-15 15:03:57

i have the offical firmware 3.51 and im wondering how can i put this firmware on to my psp?
im dying to put my own ps1 games onto it like RE1 & Metal Gear FF ect plz help me i keep upgrading as soon as i find out theres new firmware out but can i use this firmware even know i have the offical firmware 3.51..?

wb plz

Comment by dr.zoidburg
2007-07-16 02:31:02

your screwed

Comment by bob
2007-07-22 10:46:01

what if u have firmware 3.50?

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Comment by L0L
2007-07-27 04:55:27

downgrade to 1.50

 
 
 
Comment by wade
2007-07-16 10:13:12

i dont know why people always upgrade to the latest official sony firmware, then ask help re-upgade to custom firmware. can’t blame to for their curiosity lolz.

you’re stuck @ 3.51 Sony FW, wait for someone makes a 3.60 or 4.00 downgrader. then upgrade to CFW’s.

my PSP originally had official 3.11 firmware, i waited months not to upgrade until these guys made a 3.50 downgrader using Lumines 1 game. im happy now with my PSP.

fw3.11 > 3.50 > 1.50 > 3.40 OE-A > 3.51 M33

Comment by carlos
2007-07-20 12:26:21

wade can you tell me your email address so that we communicate better?>I have a 3.11 psp and i dont know what to do..can youy tell me what to do to get the 3.51 m33? thanks……my email is caredbl84@hotmail.com

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Comment by abel
2007-08-31 17:05:24

to get a custom firmware from 3.50 do i first have to downgrade to 1.50 then get a custom firmware??

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Comment by kj
2007-07-26 01:45:33

sorry dude your screwed=( no home brew if you are not on custom firmware

 
 
Comment by steve
2007-07-15 15:58:43

ive upgraded to this,but can’t run homebrew,can I downgrade to 1.5 again?,if so how?

 
Comment by Von
2007-07-16 09:56:43

Hello to every one. if somebody can give me the original files of systemctrl.prx and vshctrl.prx at the folder kn when you toggle USB (flash0) in this M33 FW Mod…please I beg….I’ve bricked my PSP bcoz of that USB Mod! Darn…but still i can go to the recovery menu….

 
Comment by JOE
2007-08-04 15:45:22

I have firmware version 3.10 oe-a and i want to upgrade what do i do

 
Comment by eden
2007-08-04 17:22:37

need help, i’m currently using a 3.3 oea. was wondering how could i upgrade to 3.51 m33? plz advise.

 
Comment by y0d4
2007-08-14 00:00:48

Noob ask :p where’s the recovery tools ? and how can I play the iso game, must i cr8 a folder in game or in root just like a devhook

 
Comment by Aqsa
2007-08-25 15:11:05

it keeps coming up as corrupted data plzzz help

 
Comment by Khush
2007-08-31 19:22:54

Just gt Tiger Woods 08 and have found it to be for firmware 3.40 My psp is a TA-082 motherboard psp at Dark Alex’s 3.03 OE-A firmware version. Just wondering if i could do this upgrade to play my game or is htere a different upgrade 4 my psp.

 
Comment by marley
2007-09-04 23:55:57

how do i do the wifi upgrade???

 
Comment by dave
2008-01-18 09:56:41

I am in need of help i am running version 3.03 oe-c and i am wanting to upgrade can anybody help because i do not have a clue what i am doing thanks

 
 
Comment by x
2007-07-14 16:12:22

yey

 
Comment by THOR
2007-07-14 16:13:11

THE NEXT DARK_ALEX

Comment by Marc Mozz
2007-07-16 19:11:21

lol some one beat alex to the punch. come on AMERICA are we going to let some Russians beat us at our own game?

Comment by schmellyfart
2007-07-16 19:29:07

dude dark alex quit. where have you been?

 
Comment by Rich
2007-07-16 22:08:56

What are you talking about America? Dark Alex was based out of Spain. He is a student there…

Comment by NoiseReducer
2007-07-17 11:47:30

… and his mother’s maiden name was Kurnikovova, right Rich?

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Comment by KhanUK
2007-07-17 14:03:07

all you guys are jokas, lmao…

who and wtf makes u guys tink his spanish or from spain or resides there?? lol lol

twats, wat makes you think that this aint even dark alex???

isit because you guys get this prog from m33 from a russian server???

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Comment by Athal
2007-07-17 19:52:25

elotrolado dot net
he aint spanish? oh, really?
I bet he is

 
Comment by shaggy
2007-07-24 13:00:04

Hes from spain dude, you gotta read a bit more, theres even an interview with dax and other developers where they talk about themselves

 
 
 
Comment by Onorok
2007-09-05 00:01:18

Why the shit does every american automatically assume that everything good comes from america? Seriously, americans are putting shame to us… americans. Damnit >_

Comment by cobaltleo
2007-09-18 18:57:06

Probably for the same reason people like you want to take 1 persons stupid comment and label a whole country by it. stop assuming anyones comments represent everyone else.

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Comment by TK
2007-07-14 16:14:19

WOOT FIRST~ Nywayz… do you think this customer firmware will be reliable? It’s just fascinating to hear this great news… but I’m not cool enough to try this out immediately.. hmm nyone upgraded yet?

 
Comment by AmyGrrl
2007-07-14 16:15:13

I installed this firmware an hour ago and all is working great…. only bug I have is when I thought I was selecting blue colour theme 4th from the top… it was actually suppose to be the ‘pink’ theme but ends up as being a ‘blue/pink’ theme… the rest are fine… otherwise this is a great custom firmware….

 
Comment by mpspt
2007-07-14 16:17:40

just as good as 3.40 oe-a

Comment by SmackAFool
2007-07-14 18:53:12

You need to go back to your mem card and Select 3.51 Updater then your done and you will be on 3.51

Comment by reluttr
2007-07-14 19:11:20

why would anyone that ever wants homebrew ever update to a non downgradeable firmware… You need to stop suggesting that, your probly po’d because you was one of those fools that decided to update yourself to 3.51 as protest against dax leaving. So suck it up and stfu.

Besides this CFW 3.51 pwns the official 3.51 over :P

 
 
 
Comment by WizardEyes
2007-07-14 16:22:36

Cheat Commandos Rock Rock On!

 
Comment by BadKarma
2007-07-14 16:23:44

Can you go from 3.40 oe-a to this?

Comment by DAng it
2007-07-14 16:26:05

yes

 
 
Comment by DAng it
2007-07-14 16:25:42

FUK CW doesn’t work for it

 
Comment by dlr
2007-07-14 16:28:41

Custom Firmwares LIVE!!! Great job team M33!!!

 
Comment by dickie
2007-07-14 16:32:06

this was predictably going to happen but im a little shocked at how quick this has come, great work and keep up the good work especially when next CF come out!! :)

Comment by kenneth
2007-07-14 23:09:28

It came quick because dark_alex is M33 he just renamed himself because sony was sending him threating letters.

Comment by wetdirtmud
2007-07-15 14:35:57

And who’s paranoid ass did you pull that one out of? Last I heard of Dark_Alex - he wanted to quit while he was ahead simply because he noticed what happened to the PS3 hackers.

 
Comment by Zethy
2007-07-16 11:14:58

I don’t think that’s the case, just changing his nick won’t make him less vulnerable. Unless he actually went to Russia and is working as a hermit… but he wouldn’t do that for us, would he??

Comment by Marc Mozz
2007-07-16 19:18:12

lol noobs, hackers are hackers. if they get caught they weren’t good enough, they don’t stop just cuz “SONY” says so. if that was the case, since it’s AGAINST THE LAW to begin with, why would a hacker have started? there are plenty of ways to make his comp(s) look like it’s transmitting all his work from Russia. no real hacker would stop until he was physically put in jail. hacking is what hackers do. unless he got bored with the PSP and moved to other things. like the iPhone. i hear some hackers got a good hold on that thing too.

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Comment by NoiseReducer
2007-07-17 11:50:59

I agree with Marc Mozz.

 
 
 
 
 
Comment by L
2007-07-14 16:34:02

I’ve just flashed this, I’ve tested it… generally, I would say quite thoroughly. It’s good.

It all works. The people who brick, I personally think are morons, who don’t know what they’re doing. But, there are different circumstances.

I am now a 3.51 M33 user.

 
Comment by basil
2007-07-14 16:41:57

any bugs please post.

Comment by L
2007-07-14 16:44:36

Some people have been experiencing slight problems, in the xmb, like… photos, music, and movies freezing, and then shutting off.

But, I can say for myself, that I’ve been thoroughly testing it, and it’s all good here. I would say this update is totally safe, and I recommend it.

Comment by basil
2007-07-14 17:47:27

im in

 
 
 
Comment by ToshiroMifune
2007-07-14 16:46:26

Very nice. Great job.

 
Comment by basil
2007-07-14 16:47:35

any games need this yet?

Comment by L
2007-07-14 16:59:11

No, not for a little while, yet.

I expect the BIG games coming to require it will be CastleVania Dracula X Chronicles, and God of War.

 
 
Comment by buTToN_MaN
2007-07-14 16:48:23

Tremendous stuff guys. Hope it stays strong and you stay with us release after release of official squirmwares. Dark_AleX you kept the psp thriving and I hope you have a great future ahead of you kid! Now I’m gonna get out my face on vodka in honour of team M33. Long live the PSP.

 
Comment by fitipirata
2007-07-14 16:49:18

it contains a recovery mode??

Comment by Shadow
2007-07-15 09:08:27

Yes it does, it’s the same format as th OE’s

 
 
Comment by Jimmy
2007-07-14 16:50:34

the only bug right now is the battery icon i think it was or the volume icon but it is good filmware i got it allready but everything work fine keep up the good work m33 and cheers for the users of 3.51 m33 kepp up the good work m33

 
Comment by Anonymous
2007-07-14 16:50:34

Does the CW have the Recovery option like DA’s CW? All the good stuff that DA’s CW like:
Flash0
Flash1
Plugins?
Registry?
Recovery Eboot?

Comment by L
2007-07-14 16:59:50

Yes, all of it.

Comment by FlameDragoon
2007-07-22 15:21:18

And more, too. Don’t forget Sony’s official ISO loader, which is in 3.51 M33.

 
 
 
Comment by Moist_towelette
2007-07-14 16:55:17

Long live these Fuckin Russian Hackers

My little Babushka?

 
Comment by Anonymous
2007-07-14 16:57:02

Does the CW have the Recovery option like DA’s CW? All the good stuff that DA’s CW like:
Flash0? Flash1? Plugins? Registry? Recovery Eboot?

Comment by Big_Alex
2007-07-14 16:57:58

Yes yes and yes

Comment by rafi
2007-07-14 19:56:10

wats the recovery eboot?
i dont got any in my 3.40 oe… it doesnt do anything

 
 
 
Comment by mrX
2007-07-14 16:58:45

man that better be dark_alex who just responded -_-

Comment by Dark_AleX
2007-07-14 17:02:55

No, it wasn’t me. As I am not DAX either.
And, I really doubt that was DAX either.

Comment by kenneth
2007-07-14 23:14:50

So what do you think of the new firmware Dark_AleX (m33).

Comment by NOT DARK ALEX
2007-07-16 13:35:13

IT KWL

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Comment by kenneth
2007-07-21 20:23:26

Because maybe you created it and sent it to russia so you woul’d get in trouble, your secret is safe with me.

 
 
 
Comment by 5amurai7ack (Zack)
2007-09-06 08:06:01

hey Dark_Alex. just wanted 2 thank u 4 all u hav done 4 the PSP. u almost single handedly kept it alive 4 not only 1000s of gaming fans but ironically sony aswell. sony should b kissing ur ass not hunting it. anyway all great people have 2 pass on the batton sum time right?[maybe ;) ]

 
 
 
Comment by phreaksho
2007-07-14 17:01:31

this is kool… i am greatful to m33!

 
Comment by Nomi
2007-07-14 17:02:41

great great great work.u fuck the sony assssss.now u have to
brick 3.60.u rocks M33

Comment by wetdirtmud
2007-07-15 14:40:40

..what?

 
 
Comment by Jambi
2007-07-14 17:09:57

I’d still wait..never heard of this M33 team..we’ll see how things hold up.

Comment by L
2007-07-14 17:14:24

Hey, I for one, recommend upgrading. It’s quite good, and it’s so far reliable. I’ve not had one crash, or freeze, or anything. I’ve been checking out all sorts of things, music, video, homebrew, UMDs, and ISO’s. I’ve tested the recovery, as well as changing the CPU speed. Registry hacks and all. It all works, and I think you should update, but hey, you do what you want, OK?

Comment by akky
2007-07-14 18:44:06

im with you on that one ive been doing the same thing ive even checkd a couple of psx games all work perfect all my plugins still work like thy supose to so yeah go for it if any ones asking

 
Comment by Jambi
2007-07-14 19:05:20

Still going to wait, there appears to be bugs in it. I’ll wait for fixes to come for those so I can do it all in one shot.

 
 
 
Comment by Gunner54
2007-07-14 17:14:03

can it run CSO + ISO’s?

Comment by L
2007-07-14 17:19:24

Yes, if you’d read a bit more thoroughly… Well, I suppose I only said ISO, but yes, CSO works at level 9 compression.

 
 
Comment by Easy E
2007-07-14 17:16:24

Great Job M33 !!!! …I havent used this yet, still waiting it out awhile, I didnt like 3.40OE, I couldnt get half of my cso’s too load, so ill wait things out abit.

 
Comment by FunkyBrunk
2007-07-14 17:19:10

The only major bug I encountered is that WIFI in homebrew doesn’t work. So, no Pimpstreamer. I’m about to try Devhook + eLoader as a workaround.

Comment by L
2007-07-14 17:21:04

Well, you have to understand, those homebrew apps and games were designed with different firmwares in mind. I’m sure we’ll see fixes and tweaks soon.

 
 
Comment by nondas
2007-07-14 17:27:42

nice work but all i see is bugs . i think i’ll stick with dark alex for a while until i see some improvement in this custom firmware and i havent found any games that require firmware 3.51

Comment by L
2007-07-14 17:31:08

What do you mean, “all i see is bugs?”
I don’t see any, other than Pink not being a selectable theme.

Comment by nondas
2007-07-14 17:38:50

i won’t answer to you just read some of the comments:)

Comment by Lizardinc
2007-07-14 19:02:57

Stop being a cock! I’ve read ALL of the comments up to here, and there’s almost no mention of bugs, other than people asking about them.

Now I havn’t tried it yet, but probably will soon, dispite you piece of shit comments.

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Comment by nontas
2007-07-14 19:39:57

you must be blind . i just said my opinion but you stupid assholle can’t read because if you could youll see clear that in some comments people installed it and had problems.

Comment by Squidman
2007-07-14 23:09:39

this basically still IS Dark_Alex, it’s just a reverse engineering of his work, just like his work is a reverse engineering of Sony’s work, so in short, we’re still Sony based, just in a more kick ass fashion

 
 
Comment by Marc Mozz
2007-07-16 19:26:56

plenty of ppl have reported bugs, however, others have reported not having bugs doing the same thing. remember, not everyone sets up their PSP the same, so some one trying something may not work for them because of the stuff they have loaded into it. so for the ones that everything did work for, they must not have the same things loaded, or they could even have more things loaded that could fix the problems by themselves. who knows. but i think you’re both noobs for not seeing the tons of comments going both ways. so choose for yourself.

 
 
 
 
 
Comment by bloodfire
2007-07-14 17:27:43

you guys got skillz, respect.

Comment by Bailey
2007-07-15 03:12:15

w3rd

 
 
Comment by JJ
2007-07-14 17:32:16

Great News!! Those good hacker make the word more beautiful and more economic. Thanks!!

 
Comment by obieone
2007-07-14 17:32:26

Does it works with 3.40 OE-A can i upgrade using this firmare?

 
Comment by michael
2007-07-14 17:32:38

hiya its crap is there anyway to go back to 3.40e or not when you put themes on it it just crashes when you press the usb connection

Comment by L
2007-07-14 17:38:25

Hey, just wait it out a while, the things you’re trying to do, can’t be done yet, because of the reason it used to not be able to be done on 3.40. Just give it a few days, and then you will probably be able to do what you want. If you really want to go back, then you’re basically going to have to get the 1.50 and 3.40, use the updmaker, and then put the DXAR, and all of the others into the recovery folder.