
Dark_AleX has released PSP Custom Firmware 3.90 M33 to the world. This new firmware bring a major feature on board, Skype for the PSP. Finally its here. (Confirmed this works well, Skype calls sound just as good as on the PC)
Instructions
- Copy the UPDATE folder into /PSP/GAME/
- Get the 3.90 sony update from somewhere, and put it in same folder, with name “390.PBP”.
Alternatively, you can let the installer to download for you via wifi.
- Run it, the update will be done by Sony updater. At the end when you are asked to reboot the
PSP pressing X or O, do it.Changes:
- 3.80 -> 3.90
- March33 NO UMD: fixed (yet another) bug related with exiting with home. (infinite semaphore wait)Changes in updater:
- The degeneration check and correction of IDS keys happens too in 3.71 now.
- Added code to download 3.90 PBP from net via wifi.
Note that his code is not yet 100% stable, it may crash when selecting AP. In that case,
reinit the installer.
- L+triangle has been restored as method to bypass battery.
If you already have 390.PBP keep those buttons pressed until you see “Veryfing 390.PBP”.
If the 390.PBP is being downloaded bia wifi, press those buttons at the end of download until
you see the previous sentence.
Similar Posts
- Despertar del Cementerio v8 Mod by Red Bull PSP
- XGEN UPDATER and XGEN Pandora DCv8 converter
- All-In-One 5.03 GEN-A Installer by Skyline969
- PSP Custom Firmware 5.50 MHU Released
- Custom Firmware 5.50 GEN-C / XGen Installer for 5.50 GEN-C Released
- Custom Firmware 5.50 GEN-D2 Bug fix coming soon *Update*




Digg it
Stumble
Del.ico.us
Reddit
Newsvine
April 6, 2008 at 12:39 pm
Hello 2 every1.I just bought a psp slim and i installed the 3.93 firmware from the official sony site.How can i install the 3.90 M33 version?
April 7, 2008 at 2:39 pm
hey i upgraded mine to 3.9 and i can’t install the m33 version, says tat it has an error 80020148 wads wrong withit. thanks a bunch
April 9, 2008 at 11:40 pm
so i have OFW 3.95 so i figure it wont let me install this cuz its a downgrade.
can someone please explain to me what a pandoras battery is, and if this software “bricks” my psp is there a way to fix it without shipping it off?
April 10, 2008 at 4:19 pm
hi, have the same problem as all you guys. got 3.93 on psp, try to put 3.93 m33 on, give the same error. please help. e-mail me at 0832927410@mtnloaded.co.za
April 11, 2008 at 2:32 am
hi, can I upgrade 3.90 to 3.93M33 unofficial?
April 13, 2008 at 6:58 am
i have version 3.93 that i update last month,and i update it again in the firmware release,the version 3.95…how can i downgrade it to Psp version 3.93 without using a pandora’s battery?
PLZ…answer me in my email
black_vipermark@yahoo.com
TNx A Lot….X_x
April 20, 2008 at 7:49 pm
hi,
i have sony offical 3.95 on my psp slim. Can i install any custom firmware despite me having this version?
April 27, 2008 at 5:47 am
I want to install version 3.90m33 and my version now is 3.95 when i try to install it says that u don’t need version 3.90m33 please help me.
April 28, 2008 at 1:32 am
Mike & dhruv
u both need pandora’s battery to do that b coz u hav official firmware
i don’t know how to install that so that’s all i can tell u..
April 28, 2008 at 5:02 am
Thx John
April 29, 2008 at 3:12 pm
http://www.youtube.com/watch?v=INZGW9IJ5D4
http://www.youtube.com/watch?v=ibQUgOLH31c&feature=related
http://www.youtube.com/watch?v=SeQ002P41dU&feature=related
Here you go guys a 3 part video narration/tutorial on how to make UPMS & pandoras battery
Here’s another one u might want to try if ur 3.80 M33 or 3.90 M33
http://www.youtube.com/watch?v=eTKy6i129oo&feature=related
I’ve tried both of them and they both work so give it also a try
April 29, 2008 at 3:16 pm
I’m not entirely sure but I don’t think OFW works
May 24, 2008 at 7:04 am
i have the psp slim has version official 3.90 and i want to upgrade it to 3.90m33 custom, but says no need to update, what can i do, email me denki6932@yaho.com
May 25, 2008 at 5:49 pm
I have a new psp slim piano black version official 3.95, is there anything i can do to get 3.9 M33???? email me at a g y n k e at t p y n k e dot i n f o
May 26, 2008 at 11:48 am
wow this site is awesome!!!
keep going !!
May 29, 2008 at 5:08 am
this is good and all but.. i have psp slim version 3.95, the silver one right and i tried all this but it comes up as currupteded data…how can i get the 3.90 m33 on my psp
June 1, 2008 at 2:48 am
sum1 i have offiicial firmware 3.95 i dont want to buy pandoras battery but ihavea another psp with official 3.50 firmwar eand i cant upgrade to 3.90 help email me at jbar444@charter.net
June 1, 2008 at 1:06 pm
Hi Guyz!!! Can anybody help me, I have a psp slim with the official 3.90 ver on it and I want to install an m33 on it any version would do ’cause I only want to play downloaded psp games on it. Is there anyway todo it from 3.90 or do I have to downgrade it to sum lower ver andthen do it. Can you please email me with ur answers/advice at guneet2000@hotmail.com. Thanks for your time.
June 2, 2008 at 8:13 pm
i got a slim where do i put the firmware plz help
June 6, 2008 at 9:57 am
help for god sake!
i have piano black psp which is new slim, the problem is that ive upgraded my psp to 3.90 and now i can not use Custom Firmware 3.90 M33 its says “system is version 3.90, there is no need to update” what i have to do to let me use of Custom Firmware 3.90 M33 PLZZZZZZ?
June 6, 2008 at 5:08 pm
you have to use pandora’s battery (the one that goes straight up to 3.17m33)
June 7, 2008 at 8:46 am
follow these instructions first u make a pandora battery and follow the steps here in this website
http://forums.afterdawn.com/thread_view.cfm/552549
then after u make the pandora aka jigkick battery put the 390 pbh file from this download instead of the 371 pbh file in has inside (i mean to replace it) and then follow the instructions on the net and execute the file and VIOLA U HAV A psp wad ever slim version (i dunno why the idiotic people put the color of their psp in the comments …) So now u go to the system information menu and see OMGOMGOMG IT SAYS PSP VERSION 3.90 M33!!
June 24, 2008 at 10:56 am
ppl the colour of ur psp doesnt mean anythin, a pandoras battery is a battery which is hardmodded , you can make it but i dont recommend it u wud be better off buyn one for $14 if u try make tha battery might xplode and it will hurt alot
July 2, 2008 at 1:00 am
i dont know what folder to place in
July 2, 2008 at 1:00 am
because there is 2 of them
July 12, 2008 at 10:30 am
yo , i cant update the custom firmware M33 3.90.
HOW CAN I UPDATE IT?
July 26, 2008 at 1:32 am
I keep trying to do this the way it is listed but it keeps giving me is “The game could not be started. (DADADADA)” Didn’t even give me an error number just DADADADA. I have currently firmware 3.52M33-3 and that is the minimum needed for the update. Can someone please help me? email: mcornejo01@gmail.com?
July 26, 2008 at 1:38 am
Ok so I double checked everything and I was able to start the update but it errored out when it was going to start with the error: “The system cannot be updated. The update data is not applicable for this system. (CTA80000025)” Any ideas?
August 15, 2008 at 7:16 pm
Here is one for you experts, I bought a slim psp, and i have the official firmware 4.05 from sony. I bought a pandora battery that has a blue led light on it so you can use it as a regular battery and as the pandora battery, supposedly with the push of a button, but heres the problem, I CANT GET THE PANDORA PART TO WORK!! I put in the magic memory stick that has the custom firmware 4.01 m33 on it, that also came with the battery i bought, then after i put in the memory stick, i put in the battery and nothing happens, it wont boot into the service mode where i can install the custom firmware, any ideas???
August 15, 2008 at 7:16 pm
Here is one for you experts, I bought a slim psp, and i have the official firmware 4.05 from sony. I bought a pandora battery that has a blue led light on it so you can use it as a regular battery and as the pandora battery, supposedly with the push of a button, but heres the problem, I CANT GET THE PANDORA PART TO WORK!! I put in the magic memory stick that has the custom firmware 4.01 m33 on it, that also came with the battery i bought, then after i put in the memory stick, i put in the battery and nothing happens, it wont boot into the service mode where i can install the custom firmware, any ideas??? sorry for the 2nd post, i didnt check the box to notify me of a reply the last time
August 18, 2008 at 6:21 pm
Nevermind, I didnt know that the pandora battery had to be practically fully charged to work. I got it working now, thanks anyways.
August 23, 2008 at 1:32 am
hi, I have a black slim PSP, and I want to know how to get my PS1 games to work on it without having to make a Pandora’s battery or anything like that. I’m not very good with tools. Can someone help me? I have tons of firmwares that I downloaded, and I’m not sure what to use on my slim version. Please help.
August 23, 2008 at 3:02 am
Well, you have to have custom firmware installed to play any of you ps1 games, or any game you download off the internet. The only way to put custom firmware on the slim psp is to use a pandora battery, now you can buy a battery and magic memory stick package for around 40 bucks, or you can find someone to install the custom firmware for you. Now i know its risky, but there are people on ebay that will install custom firmware for you for about 20 bucks. If you are willing to take that rout, i will do it for you for Free, send me an email if your interested . player_x_slayer420@yahoo.com
August 23, 2008 at 3:10 am
sure. I’m definetly interested. I am a diehard FF7 fan. Heh. They say that you can either buy a battery or have someone “copy” it over from something. I’ve been reading up on this all day, and I am desperate.
ultimaeiko2005@yahoo.com
just throw in the subject line PSP help
August 23, 2008 at 4:08 am
Lol I sent you an email, go ahead and read it, and i will be more than happy to help you out.
August 24, 2008 at 1:38 am
Hey guys
just got PSP Slim (silver)
OFW 3.80
Is there a way to convert it to 3.90 M33 CFW without using a Pandora’s Battery? Plz email/IM me, Crimson_evader@hotmail.com
any help is greatly appreciated
August 24, 2008 at 3:01 am
Nope, Pandoras battery is the only way to go if you have a slim psp, especially with firmware above 3.50
August 24, 2008 at 7:25 pm
damn…
Cause i will most likely brick my psp if I try make a Pandora…
mostly due to my complete lack of skill lol
August 24, 2008 at 7:33 pm
well, you dont have to make the pandora if you dont want to, you can buy a package with the pandora battery and magic memory stick online for about 40 bucks. usually that gives you a pandora battery and a 1gb memory stick with the needed software to install custom firmware.
August 31, 2008 at 9:21 pm
Hey guys, I have a little doubt…I have a PSP FAT…firmware 3.71 m33-4
but some games, as “harvest moon innocent life” crash my PSP when I try to play…it just turns off Oo
I wanna know what can I do…update the firmware maybe?
and if I do so…can I still play my MS games without a pandora and without an UMD? thanks for complaining
e-mail: zellavenger@hotmail.com
August 31, 2008 at 10:39 pm
Most likely you need to update your firmware, I have the newest version of the 4.01 m33 and i havent found a game that wont work yet. and what do you mean by MS games? there are settings where you can make games play without having a umd in the psp.
September 2, 2008 at 2:32 am
ms games = games stored on my Memory Stick ^^!
September 2, 2008 at 3:50 am
yeah, just visit dark alex’s web site to get the updated firmware, or if you have a wireless connection you can do the update on your psp. i have the 4.01 m33-2 and i have no problems running any iso, cso, or psx game.
September 2, 2008 at 6:21 am
4.01 M33-2 is here -> http://pspslimhacks.com/401-m33-2-and-401-m33-150-kernel-add-on/
September 9, 2008 at 11:07 pm
here is where u get the Sony Update
I wonder why no one even took the effort to find and post it?
weird peeps
http://www.us.playstation.com/PSP/About/SystemUpdate/pc.html
September 12, 2008 at 9:21 pm
I got a friend to mod it for me! It’s osm. Thanks for everything guys. I have my custom Pandora’s Battery and Magic Mem Stick.
However, are there any known glitches while playing FF8 and FF7?
When I started up FF7, it goes through the first FMV, but when Cloud goes to battle the first two MPs, it gets all glitchy, freezes, and shuts off.
When I play FF8, when I casted a spell at Ifrit (scan), it froze and shut off.
I burnt the BINS from my discs to play? Could it be my discs are messed up. I only downloaded FF9, and it works fine. I’m on disc 2 now. Any input?
September 13, 2008 at 8:46 am
hi how to download iso folder please help me
September 16, 2008 at 1:57 am
Are you trying to download a PSX game (iso), or a bunch of isos in a folder?
And to solve my problem, I believe I have to use a different version of Popstation with FF7 (namely, an earlier version), and that I shouldn’t cast Scan in FF8, and also don’t cast too much magic at one time, or it’ll freeze. I’m gonna try ff8 again.
September 27, 2008 at 1:46 am
I have version 4.05 offial how do i get 3.9 m33 on my psp?
October 11, 2008 at 4:01 pm
i have official sony firware 4.05 how do i get custom firmware its a slim never hacked before please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!