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Custom Firmware 4.01 M33 Released
greg | June 28, 2008
Ah, ha! Where we last left off Sony unexpectedly released firmware 4.01 while Dark_AleX was in the midst of developing 4.00 M33. Today, the continuation of our episode has come to a delightful end. Dark_AleX strikes with force and delivers the much anticipated custom firmware 4.01 M33.
4.01 M33 changes:
- Bug fix: vshmenu didn’t let change camera mode due to camera_plugin using select button. Fixed, now vsh menu will not be loaded when using the camera.
- Recovery can now be translated, See how below. Translation to Spanish is auto included.
- Updated the M33 SDK with a new function and sample, and released the psp-packer tool to compress prx’s and PBP’s in the ~PSP format.
- The folder of 4.01 and higher homebrew will be GAME4XX so it won’t need change on update.
Also mentioned in the readme: the 1.50 kernel add-on for the PSP Fat will be released tonight.
Download:
Custom Firmware 4.01 M33
Sony’s 4.01 Update EBOOT (401.PBP)
- source: dark-alex.org
Thanks John Jutras, Demonchild, and David Roth.







w00t! nice to see this. Time to update.
can anyone help me install it?
No. why do you people keep asking, you shouldnt be on this site then
So there isn’t a tutorial and help section on this site?
If you don’t want to help them don’t be rude, just don’t say anything, or help them. Like I mentioned try the tutorial section or help section in the forums and you should be able to figure it out.
how do u install it could some 1 plz help me or email me on jax_z@hotmail.co.uk
To those asking for instructions:
Just go to the DarkAlex site where you can read the instructions for 4.01 M33. Or just read the file that says “READ ME” in the ZiP/RAR download file.
OFFICAL DarkAleX 4.01 M33 Download & Instructions here:
http://forums.exophase.com/showthread.php?t=7668
“You NOOBS should learn to read more! If your illiterate then WTF are you doing here go and study.”
~~~~~~I HATE SEEING SPAM ON THREAD~~~~~~
guys have Download the Fw4.01 and b4 the M33 is launch after which i tried to run the V4.01M33 show me some error. tried many time still the same erroe message any idea what i should do ….
you have to have cusotm firmware to run it so now you need to use a pandora batter to downgrade
Thanks Man …… Sad
Pretty damn awesome! Good to see DAX is still alive and screwing Sony
been waiten for this, downloading the 1.5 addon tonight
YES
DAX KILLED SONYY HAHAHA
You shouldn’t kill something that you are relying on completely (the original firmware that is) :P
can i update to cfw 401m33 from ofw 393?
No.
yes pandora
No you can’t, search the forums for guides on how to install custom firmwares. :]
~Unquestionable
Yes you can update from CFW 3.93 with this i’am updating it now!!
Thanks M33!!
Waiting for the 1.50 kernel now..
OP asked if you could upgrade from OFW, not CFW.
use this pandora-U.P.M.S. EMERALD INSTALLER IT WILL LET YOU OPERATE YOUR PSP NORMALLY AND YOU CAN GO BETWEEN 1.50 AND EITHER 3.52 M33, 3.71 OFW, OR 3.71 M33 IN A MATTER OF MINUTES.
ya only 9hs late with the news. come on psp-hacks pull your fingers out.
I just woke up. :)
i dont think psp-hacks update 24/7
Then go somewhere else?
how do u update
If you’re already on M33 CFW you can just use the network update (enable it in recovery).
Nvm it waz in da read me dur
What?
Is that english??
Translation:
Nevermind, it was in the readme file. Oh dear that was retarded of me.
Sweet Dark_Alex is the man
Can I use 3.71 Popsloader with this to play ps1 games?
Hi, While trying to do the 4.1 CF update i forgot to change the sony firmware name to 401. Now i have Sony’s Origianl firmware.
How can i put 4.01 M33 back?
use the Pandora Battery.
thats the only way
not quite sure, but unless u have a pandora battery, u might be screwed
Hey guys does this one working with Network Update?(yes I already have 3.90 M33-3 installed) but getting connection error plus Dark_Alex org site is down for me on my PS
The network update does work just keep trying, Thanks Dark Alex
still error for me but i’m just copying it to my mem card and running it from the XMB( no patience)
Thanks Guys, I dont have Pandora Battery.
At least i compleated Final Fantasy.
Plugins I’ve Tested…
*Popsloader from 3.80M33 works
*CXMB plugin does NOT run
*Remote joy runs fine
*Screenshot plugin works
IF: vsh or recovery does not work:
Add en_recover.txt (blank text file) to your seplugins folder to fix recovery/vsh
Popsloader from 3.80M33 works?
sweet, time to update.
PSPHeaven,there is a new CXMB.
http://forums.qj.net/showthread.php?p=2069400
oops its en_recovery.txt
Hopefully IRSHELL gets an update now
How do I get the ps1 games to work?
I’m currently using 3.9 m33-3
They will work the same :) Once you upgrade go into recovery mode and re-enable your plugin…..
If you’ve never done ps1 then watch this tutorial.
http://youtube.com/watch?v=XKMK0oBdyyk
There are 3 videos this is the first one…..
do i have to download the plugin from some where? upgrade to 4.01 first?
Download in video description you dont have to upgrade but you can
^_^
Wonderful update. Let’s just hope we don’t need to wait 4 hours on the kernel add-on.
Just to be clear…sony releases 4.00, realizes there’s a problem and rushes 4.01 out the door…
This causes DA/M33 absolutely NO problem whatsoever and he just creates CFW 4.01, seeing as there’s no reason to make 4.00M33 and 4.01M33…
Maybe I’m going out on a limb here, but my guess is that DA is, in fact, God…
lol, yes he is.
Holy hell, yes.
I have been waiting for a new DA cfw, I”m sorry to everyone else working on cfws, but they just haven’t met the standards for me yet…
Good job M33
Now let’s see if GEN can top it =)
of course he can’t! that’s just common sense
Comment by PSPHeaven
2008-06-28 17:29:38
Plugins I’ve Tested…
*Popsloader from 3.80M33 works
*CXMB plugin does NOT run
*Remote joy runs fine
*Screenshot plugin works
IF: vsh or recovery does not work:
Add en_recover.txt (blank text file) to your seplugins folder to fix recovery/vsh
Your right, CXMB plugin does not work, hangs if the plugin is switched on
Dammit. I updated from GEN 3.9x over the network update (which was set to M33) and now I’m stuck with the official firmware again! :(
When is his site going to stop 404 me? I need the newest Popstation!
I have a download on my youtube video…
http://youtube.com/watch?v=XKMK0oBdyyk
There are 3 videos check them all
I’m running 3.90 M33-3, is it worth upgrading? I’ve had no problems with 3.90 M33-3
I’ll wait until there’s a 4.01 M33 compatible CXMB. Otherwise, I’d update once 1.50 kernel add on comes out.
There is :)
http://forums.qj.net/showthread.php?p=2069400
Will my 3.90 m33 flash themes work on 4.01?
If you upgrade XMB and CXMB will not work keep 3.90M33 if you want to be customized until an updated cxmb is released
CXMB for 4.01M33 :)
http://www.consolespot.net/forums/attachment.php?attachmentid=4872&d=1214687501
can you access the recovery menu by pushing the select button in the XMB menu
No. It brings up the VSH menu only. Found two new Debug modes in fake region select. Later
Does it work on psp slim 3.90-3M33?
I don’t think the fatmsmod 3.71 for 3.80/3.90 works on 4.01m33 as it semi-bricked my PSP.
No it doesnt lol. Yes i bricked myne too lol. I decided to redo my upms 4 stick after updating.
But after having done it myself let me say it should have been obvious that a 3.xx patch isnt gonna work on a 4.xx firmware lol.
Now for me work very good M33-401 on psp slim.
For what i need to use this file en_recovery.txt ??
Please answer me.
regards
someone said recovery didn’t work on theirs and that fixed it
Way to go DA! You are the best thing since the 2N 3904!!!! (Transistor)
It works excellent.
Yes,I remember the 1.50 days when you used Wipeout Pulse UMD to access a web portal to download 2.00 firmware from Japan! Good Tubes
I’ve got 3.40 OE-A, how do I upgrade to 4.01 M33? I tried, but freezed on “please wait…”.
yea dax site is down dat why we cant use the update datsite where the psp finds m33 updates and his site is down so just have 2 wait,,,, 2 update or download it from here……when his site his back up u can use the psp 2 update ,,,,
will cwcheat still work?
Doesn’t work for me.
Okay never mind, LOL, I just had to re-enable it in recovery.
i have 3.95 gen and wen i put the files for this on my psp it just puts a corrupt file there can i do this update from 3.95 gen
The “module” folder doesn’t exist anymore in flash0
yes it does exist. what the hell are you talking about?
hey, i wanna get this CF but i got 3.95 gen
do i just normally update or do i have to downgrade or somehting.
The heck? I installed Popsloader correctly but I can’t see it in the Plugin category in the Recovery menu so I can’t enable it. What’s going on?
Nevermind, added an empty en_recovery.txt file in the seplugins folder to make it work.
:) yeh thats how…. alot ppl having that problem lol…. Glad its an easy fix tho.. DAX should have it so that it dosn’t need it tho…
After installed the cfw, the psp can’t detect all my savedata, games & homebrew.
Anyone know what’s going on?
problem solved. I format the memory stick and left the volume label empty because before this I always rename my ms volume label.
can i update to cfw 401m33 from ofw 3.95 GEN2?
3.95 GEN is a custom firmware (CFW) not an official firmware (OFW).
And no, you can’t directly upgrade.
What the hell is with can they not read the readme.txt in the rar file. Read every possible reference that the rar file has to offer before asking questions. I mean, I don’t mind answering but common the freaking file that explain is right in your face!
thank god, that cave was starting to smell dank.. to the bat mobile!!
lol..395 gen user…downgrade ur psp before u all upgrade?? cause i feel is the safest way…u might not know wad 395gen can jus bricked while u r updating.. PANdora =]=]=]=]=] best way out..im waiting for my another psp to save me now…my PHAT got BRICKEED..due to the stupid 395gen..
What happened Alek site is down!!!
When trying to update to 4.01 M33 via Network Update from 3.90 M33-3, I get the message that I am already running the latest version, and that there is no need to update.
The site is up, though.
Anyhow, great work - looking forward to t