Dark_AleX has released PSP custom firmware 4.01 M33. This new custom firmware edition from DAX brings 4.01 kernel support and features from firmware 4.01, multi language recovery support and many minor bug fixes. Custom Firmware 4.01 M33 does not have a XMB recovery menu or savestate support at this stage, this will follow in future updates possibly 4.01 M33-1 or 4.01 M33-2.
4.01 M33 can be downloaded and updated on 3.80 M33 upwards using the network update feature or use the download links provided.
* Extract the archive. * Copy included UPDATE folder to X:/PSP/GAME
* Place the official firmware 4.01 update EBOOT, named as 401.PBP, in the newly created UPDATE folder
* Begin installation from the Game menu.
(Custom Firmware 4.01 M33 - 436.8 KiB - 56,225 Hits)
(PSP Firmware 4.01 - 24.4 MiB - 80,603 Hits)
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July 30, 2008 at 6:59 am
Can i downgrade oficial firmware 4.05 to custom firmware 4.01 m33?
July 30, 2008 at 4:15 pm
Ok, Just to make this extreamly clear. YOU CAN ONLY DOWNGRADE FROM OFW (Offical Firmware) TO CUSTOM FIRMWARE BY USING A PANDOAR’S BATTRY & A MAGIC MEMORY STICK! If you don’t know anone with CFW there is a hard mod for the barrty and a way to make a magic stick on the computor. Search YouTube for how to do it. Please guys no more stupid questions asking if you can put CFW on without the Pandora’s battry or magick memory stick.
August 3, 2008 at 6:22 pm
hi i’m a newbbie at this i have a psp slim&lite with costum firm 3.90 m33-3 can i update my psp with 4.01 m33 without a pandora and magic stick?i whant a response from a pro.thx
August 5, 2008 at 1:00 am
cyber Says:
August 3rd, 2008 at 6:22 pm
hi i’m a newbbie at this i have a psp slim&lite with costum firm 3.90 m33-3 can i update my psp with 4.01 m33 without a pandora and magic stick?i whant a response from a pro.thx
Yes, you can. you should download it and put it in your memory card and work from there.
August 9, 2008 at 9:26 pm
Ok I have 3.90 M33-? cfw & a SNES emu. with no magic memory stick or pandora battery & I have questions.
1.If I update to 4.01 M33 will my emu. still work?
2.How do I install it?
3.Is it possible to downgrade without the magic memory stick & pandora battery?
August 12, 2008 at 5:04 pm
Hi Guys, I’ve seen so many people asking the same questions so can someone answer it one shot please.
Q: Some people have normal Firmware (NOT CUSTOM) and wanted to update it to a Custom Firmware. So how do you do it?
Can you update from a FW 4.01 to a CFW 4.01 M33 without using a “the” battery.
If not, is there another way? Like Downgrading it
Regards
Aaron
January 17, 2009 at 11:52 pm
I HAVE PSP SLIM 4.01 CAN YOU UPDATE TO 4.01M33 WITHOUT USING THE BETTERY IF NAT IS THERE ANOTHER WAY PLEAS HELP ME
August 30, 2008 at 11:28 am
I have done everything according to above. When I come to update it, it says “this game could not be started (80020148)”. What does this mean? any help would be greatly appreciated, can email darrynjohn@gmail.com
August 30, 2008 at 6:48 pm
i have custom firmware 4.05 and i downloaded the m33 but when i went to install it it sayed corupted data i need help with this please
August 30, 2008 at 6:51 pm
I dont think your fucken m33 works its a peice of shit you cock sucker
August 30, 2008 at 6:54 pm
i have the custom firmware 4.01 but your 4.01 M33 wont work i tried a lot of times and i read your directions over and over again please help me
August 30, 2008 at 6:56 pm
agggggggggggggggggggggggggggggggghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh ineed help with this
August 31, 2008 at 12:28 am
@ imsosmart.
If you really think your that smart YOU WOULD HAVE REALIZED that you can only get this version of firmware if you have custom firmware originally. If you have official firmware you cant just update using the damn update folder. Get a pandora’s battery and magic memory stick. Only way to hack it in your state, which is 4.05 ofw. Search around the forum and next time read the READ ME more carefully before you start judging stuff without even reading how to install it correctly.
September 4, 2008 at 12:52 pm
my PSP says that the game could not start when im trying tol update…i followed your instruction i am using a 3.95 v
September 8, 2008 at 3:55 pm
Can I use this to update from M33 3.71? Or do i have to update to 3.80 first?
January 19, 2009 at 9:56 pm
Yes you can but then you can’t auto update in the menu. Download the firmware.
* Extract the archive. * Copy included UPDATE folder to X:/PSP/GAME
* Place the official firmware 4.01 update EBOOT, named as 401.PBP, in the newly created UPDATE folder
* Begin installation from the Game menu.
September 11, 2008 at 12:07 am
this firmware reaally works it works fine to me
September 12, 2008 at 8:40 pm
IDIOTS
HAHAHAH
U will never get custom firmware U FOOLS
U are just all a bunch of retards, who cant research.
Keep it up dax, we all support u, u shouldnt care about some commens from a few whiny 8 year olds.
September 13, 2008 at 7:06 pm
hey duds .i wana use cxmb them and i have cfw 4.1 but it dont works? i need help.i tried many videos from you tube but it dont work.my ctf them dot shows.
September 21, 2008 at 8:59 am
You Great Master………………
September 21, 2008 at 10:54 am
bunch of either retarded people or under 13 year old kids on here asking questions that they can figure out themselves with a little research.
September 21, 2008 at 10:53 pm
hello i was just wondering that i have psp slim 4.05 offical softwear and if i want to update to m33 can i put it back to the offical or not ?>?? thnx alot
September 23, 2008 at 3:24 am
hey everyone im a noob at modding psp’s. well i was wonderin if anyone could give me a walkthrough on how to mod my psp fat from standard sony firmware 3.95 to cfw 4.0m33 orcfw 4.1 m33 i have been tryin to find out for weeks and still havent heard anything from anyone. any help would be greatly appreciated
September 25, 2008 at 5:52 am
HELP !
i was on 3.90 m33 previously, after i upgraded it.. it became 4.01 !!! and keep show “this game could not be started (80020148)” while i trying to start any apps…
how come without “m33″ ??? how i can fix it? any helps??
my email: alstotts81@hotmail.com
many thanks
September 29, 2008 at 3:31 pm
I have CFW 3.90 M33 installed, can I upgrade to cfw 4.10 m33 and still play my saved games on my previous cfw? thanks
September 30, 2008 at 5:26 pm
friendz
by mistake i have updated my psp through net.
n it got 4.05 firmware .
now i need 4.05 m33-1 or 4.05 m33-2
plz helpme
October 1, 2008 at 11:33 pm
is it possible to install a custom firmware for psp slim 2006 model?
October 3, 2008 at 4:22 am
as many ppl have stated trying to update from official firmware to custom is not possible, i upgrded to v4.01m33 from v3.95gen (not my smartest decision)
October 3, 2008 at 5:10 am
its because i have bought a psp slim model From china and i think i arrived with a new motherboard model which is not able to downgrade… does anybody knows when will it be possible?
October 4, 2008 at 8:21 am
Hey all,
I was on 3.80m33-2 pspslim. After following the required procedure above (copy update folder into E:\PSP\Game\Update (E is my psp memcard drive) the update folder contains Eboot.pbp initially. Without removing that I copied official firmware in as 401.pbp and then booted my psp. After installing the firmware I got the error note (Update Failed please contact technical support (FFFFFFFFE) and then my PSP seems to have bricked (turns on for about 15seconds, screen displays nothing at all then turns off). Anyone can help me please! for those who would scream at me for not researching sorry, but total noob at upgrading so dont understand much of what i read.
Email: nick12321@gmail.com
help please!!
October 5, 2008 at 8:35 am
can i ask question what should i do if i upgrade my 3.95 version to 4.01 m33.. what should i do first..
October 5, 2008 at 6:00 pm
thnx 4 the CF
[...INSTALLING...]
October 11, 2008 at 6:34 am
where do i save all of this
October 13, 2008 at 4:35 am
ya when i tried to install on my psp it went plank and said some kind of error and and bunch of numbers but i cant really figure out why
October 14, 2008 at 12:32 am
Whats wrong with you cheapsk8 fuckers its like fucking peanuts for a pandora battery there like 10 quid in the uk.Buy one and do it right instead of posting a whole lot of useless why why why crap on here.
October 15, 2008 at 7:19 pm
Ok so…..is the original version of it required to use this because it keeps saying that it can’t be started due to corruption….please help T_T
October 20, 2008 at 8:16 pm
Sorry, but i m from poland and i can not english.
Please answer me very easy.
This soft is not damage my psp???
Can i to install this soft on my psp?
And why can i to install it?
January 15, 2009 at 7:49 am
DUMBASS!!! go to school or something..
January 24, 2009 at 1:56 pm
lol
November 22, 2008 at 11:01 am
hi to all…
im from philippines and im happy to say that, i have to do is pay for all of the probs that u have… as is all of that!!
January 15, 2009 at 7:48 am
your disgraceful.. you bring shame to your country!! why pay if you can do it yourself?
moron..
December 12, 2008 at 4:36 pm
how can a get psp system 8.90 M33-3 for my psp-2004 PB.
January 22, 2009 at 10:21 am
again an idiot.. in which world do we have 8.90 m33-3
December 31, 2008 at 9:25 am
i already have 4.01 on my psp without having to download it so can i still put games on it or will i have to downgrade
January 15, 2009 at 7:46 am
u dont need to downgrade just update it..
January 1, 2009 at 4:08 am
official firmware link dead
January 7, 2009 at 10:19 pm
Can I downgrade my PSP slim (3.71 Official Firmware) to a custom ?
And what CFM I need to install to be able to play games without UMD disk?
January 13, 2009 at 7:30 pm
what does a pandora battery and magic memory stick do
January 15, 2009 at 7:43 am
i did it.. Its wOrking.. Wohoooooh! Hoooray!!!
January 21, 2009 at 12:37 am
hi guys ive got psp slim ofw 4.05 i up it from 4.01 does any 1 no wot cfw i can use thanx
January 23, 2009 at 11:39 pm
hi i am new to psp cfw i realy want to put it on but dont no how to i hav a psp-2004 and it is updated at 4.05 any help guys
February 1, 2009 at 3:01 pm
You guys are fucking idiots the ones who keep saying oh how this don’t work and what not, dick heads you have the ofw!!! You need (cfw) for this to work! How bout ya start reading more from now on
February 9, 2009 at 11:13 pm
I tried to install M33 but I get an error saying could not read 401.PBP
February 13, 2009 at 10:26 am
two question here 1 is these rar files corrupted if so post them please thank you and 2 updater 1.50 says when trying to load it says tha game could not be started (80020148)what do that means or what i need to do thanks
February 13, 2009 at 2:37 pm
hi..i updated my psp yesterday, from 4.01-m33 to 5.03, now i cant see all of my games. what can i do? please help me?
February 15, 2009 at 3:55 pm
the data was corrupted
February 16, 2009 at 11:10 pm
I have OFW 5.03 and I downloaded 4.01 m-33 and it said it was currupted a little help here