Posted by 
October 18, 2008 •
Custom Firmware 5.00 M33 has just been released. Dark Alex completely skipped 4.02 and released 5.00 M33. Interested in the changes? Read the PSP 5.00 OFW changes. The most welcome change to 5.00 is the full QUERTY keyboard. No more cellphone like input for us ^_^.
Note: If you’ve already install 5.00 M33, you can skip to it’s patches on the next page. The latest patch is 5.00 M33-6.
Important UPDATE: If you are having trouble playing the latest PSP Games, you may want to install the Prometheus-4 module or use the ISO Tool Patching guide. OR you may want to update to 5.50 GEN-D3 
Requirements:
- PSP Phat or PSP Slim with 3.52 M33 or higher. If you don’t have custom firmware yet, READ: Convert your PSP to custom firmware.
- PSP battery that’s at least 78% full
- Download: 5.00 M33 | 5.00 M33
- Download: 500.PBP | 500.PBP
- Disable ALL plugins.
- Back up your save files (so that if they get corrupted, you still have backups)
How to install 5.00 M33 CFW on your PSP:
- Extract the 5.00 M33 installer files to your computer.
- Copy the Update folder to X:/PSP/GAME/ on your PSP’s memory stick.
- Download the official 500.PBP. Rename the EBOOT.PBP to 500.PBP before proceeding.
- Copy the 500.PBP to the directory; X:/PSP/GAME/UPDATE on your PSP’s memory stick.
- Disconnect your PSP
- Run 5.00 UPDATE from under Game on your PSP’s XMB
- Press X if asked to correct idstorage keys
- Continue to install the official 5.00 SONY when prompted
- After all process is complete, press X. Your PSP will reboot.
- Congratulations, you’ve just installed 5.00 M33
STOP!!!
If you haven’t successfully installed the 5.00 M33 firmware then you can’t proceed here since these are just subsequent patches. Read the guide on How to install 5.00 M33 on your PSP above or if you have official firmware, post a comment and let’s see if I can help you out.
If you want to upgrade your 5.00 M33-6 then turn to the next page.
hello, im new here ,i have a problem here, can anyone help me to update my psp version 5.00,it says that i need 4.01 ver. but mines 3.90 so i dont how to do and i dont understand much about psp please anyone help me.
This is a great tutorial!!! It works great!
yo plz help me out. i already have the 5.00 m33-3 (that is my software) on my psp and i want to install it again because i got a new memory stick and i dont no how to install it again so if i download a lower version then 5.00 m33-3 will it screw my psp up, because i really want to download it again and i really want it help me!!!!!
@moiz:
you don’t need to reinstall custom firmware on your PSP just because you’ve bought a new memory card. Just copy over ALL files and folders from your old memory card into the new one.
why i cant install……………
it says that incorrect 500.PBP something…………
It says when try to run it cannot start game. any help
@Keeper:
there’s usually an error listed when it says cannot start game. please reply with the error
hello poh! somebody help me…nadownload ko n poh ung 500-m33 but file corrupted ang nlbas…may mali b ako?
@tanto:
redownload mo lang ung files
ty…sylb3rblade…i tried redownloading d files pero file corrupted p rin sya…
fdr my psp’s current system is 5.01…
@tanto:
err.. you’re not using custom firmware?
yap! ngaun lng sn me mgtry ng cfw…
i follow d step here but dats d result of my work…
can u help me….plzzzzzzzzzz…ty!
@tanto:
err inde pedeng install directly ung 5.00 m33 sa ofw. Dapat ipandora/magic MS muna.
can u teach how to do it? sencia n kbyan wl tlg me knowledge pgdating s psp lam ko lng mglaro…hehehehe
don’t get mad at me…ty
@tanto:
read this up: http://www.makeuseof.com/tag/how-to-downgrade-your-psp-upgrade-to-a-custom-firmware-part-two/
hi men..
in the instructions above(well actually a requirement ^^) is it a must that ur current cfw is 4.01 M33?
by the way my cfw is only 3.90 m33,is it possible that i can still update my cfw???
tnx for ur help anyway..god bless!piz
@hep hep huray:
you really need your cfw to be at least 4.00 m33 or 4.01 m33 otherwise you risk bricking your PSP
ok ok…tnx 4 d advice men..
can i ask one more thing? is there a url link of cfw 4.01 m33 that i can download hir at ur site?? i luk already but i only saw (well in the “guide” i know u know wat im talking about ^^) 3.8 m33…>_<
anyway tnx 4 the help men…
Hu, im new. but i have my old psp here (the first version) and have the official 5.01 already installed. But now i want costum firmware. how do i do that? and i dont want to mess with that pandora stuff.
Plz help :s
Create UPDATE folder. paste the EBOOT.PBP and the 500.PBP to that folder. Then put the UPDATE folder in PSP/GAME folder.
@mj bautista:
he says he has official 5.01 firmware installed.
@Tommy NL:
read this up: http://www.makeuseof.com/tag/how-to-downgrade-your-psp-upgrade-to-a-custom-firmware-part-two/
i know its only m33
I put the update in the right folder and the PBP file but when I try to run it it says “unable to start game. error corrupted data” I downloaded from here so should be corrupt. Someone help, please?
@Dorian
the pbp file may have finished downloading before it was complete. Try another link, I’ve posted several of them right?
hello again kbayan…nabasa ko ung how 2 downgrade psp…masyado plng mabusisi hehehehe…blak ko snang bumili n lng ng pandora battery at MMS meron b jan s atin s pinas?
hiya, just like to know, ive done a lot of looking but theres one thing that bugs me, if i install a CFW(say 5.00 m33) does that mean i ccan play bought UMD’s that require and firmware lower. Like, does it work like its corresponding official firmware? Thnx =D
oops,
@ sylv3rblade
Just read your link, i think it answered my question =P
I successfully upgraded my PSP from 3.90 m33 to 5.00 only and realized I missed the patch m33. Now I want to upgrade again 5.00 to 5 m33-3 but the system wont allow me and gave me ‘The game cannot be started.The data is corrupted’. Please help anyone.
hey im on 4.01 m33-2
i want to update to normal, Sony firmware, not hacked
can i just click network update and it will work? or will that crash my psp?
@Jimmy
You can manually update to the official firmware. If you use network update on 4.01 M33, it’ll update you to the latest CFW not OFW.
@Ali
Are you sure it’s a PSP-2000 model, not a 3000?
i have a psp slim,i have the original firmware from Sony 5.02 not M33,but i want to change it into 5-00 M33,so what am suposed to do,pleeez help me?
soory but its me again,pleeeze i need help with my psp slim its 5.02 i want to change it into 5.00 M33,pleeeze help me?
yes am sure its a PSP-2000 model
@Ali
you need to use a Magic MS to install custom firmware on it.
I’ll try to create a guide for that in a few days but for now, it’s best if you can ask a friend to help you out.
actually all my frnd dont know anything about PSPz,i’ll just wait for the guide u mentioned,but pleeez help me ,i am bored with my PSP ;(
Hi guys, I’ve got a psp slim with 3.90 m33-3… can I update it to 5.00 or I need to update it to 4.01 first? Thx =)
@AndreX
you can upgrade to 5.00 m33 directly.
Can anyone assist my PSP is currently running official firmware version 5.02 (model psp-1003). I would like to upgrade to 500m33_4.
What do I need to do first before I can upgrade the OFW? Thanks in advance.
@QuiteStorm
first off, what model of PSP do you have.
Is it a PSP-3000 or a PSP-2000?
If it’s the latter, do a check on what model your motherboard is.
@sylv3blade, hai silver blade, i read your previous post regarding on how to install the firmware 5.00 M33-3.
My model is 2000, when you are ready the guideline, can send to my email?
mole_chew@yahoo.com
thanks in advance!
@Sylv3rblade
Thx ^^, just another question… I’m Italian… will be any problem or the firmware will work fine with my psp too?
@AndreX
yep it’ll work regardless of your PSP’s localization. And yes, you need to install M33 before proceeding to M33-4 since M33-4 is just a patch.
PS before I can upgrade my psp with the m33-4 i MUST install the m33 or I can skip this step? ^^
@sylv3rblade
Thank you very much ^^
Hi Sylv3rblade, The model number of my PSP is ‘PSP-1003′. I assume that make it a 1000. Awaiting further instructions
@sylv3rblade
Hi Sylv3rblade, The model number of my PSP is ‘PSP-1003′. I assume that makes it a PSP-1000. Awaiting further instructions
Can anyone help I want to put CFW (500m33_4) on my PSP and i’m not sure how to start. My PSP is running Official Firmware 5.02, Model is PSP-1003, MotherBoard is TA-082. Also it’s a phat PSP.
Is the 5.00 M33-4 the latest release as of 01-03-09 or is there a newer version?
a guy on craigslist says he can install (version 5.01M33-4)
5.00 M33-4 is the latest release of custom firmware.
There’s a 5.01 version for the official firmware though and I’m not sure if that 5.01m33-4 is a legit version of the CFW
essa 5,00 M33 CFW não vai travar meu jogos que estão no Ms?
I got my PSP naaaaaaaa!!! Pero it’s a 3004! Any links or stores you could recommend for downgrading?
Ron´s last entry was: Merry Christmas Everyone!
@Ron
nawp.
PSP -3000 = no CFW so no downloaded games.. unless it’s from PSN.
hey y’all,i just want an answer for my question,
i have a 3.71 m33 Psp slim and i want to upgrade it to 5.00 m33,shall i just go to Network Update and update it?
Network update only works for 3.90 M33 and above. If you do use Network Update on your 3.71 m33, it will install the official firmware and you’ll loose access to free games. Update to 3.90 M33 first or go directly to 5.00 M33
@Syl: Then I guess it’s expensive UMD’s for me… *sigh*
naghahang ung psp q after q iupdate to 5.00 m33.. is their any risk n msira ung psp pg d2 aq ngupdate or using this site to update my psp?
well it’s not all bad. Look at it this way, your PSP games SHOULD worth it ^_^
Ummm, cguru
hi there.. will this update not allow me to play games on my memory card???
5.00 m33-2 sucks ba11s.. it cant even play ps1 .eboots & roms
@aww bang
POPSloader was updated for 5.00, it’s not the firmware’s fault if you didn’t update it.
wow thank you! this version works fine on my PSP slim! keep it up! ^^
hey … ummm stupid Q … how do i “run” the folder…. plz some1 answer cz am sick tryin A THOUSAND TIMES but it dsn work
@suzi
place the extracted folder under /PSP/Game on your memory stick. It’s written on the post.
I’VE TRIED DOING THIS ABOUT 6 TIMES AND IT WON’T WORK!!! I HAVE A 3.71 M33-3, I DOWNLOADED THE FILES AND PLACED THEM ON MY MEMORY STICK IN A FILE NAMED UPDATES IN MY GAME FOLDER. BUT WHEN I GO 2 ACCESS IT, IT SAYS CORRUPTED DATA. WHAT AM I DOING WRONG? WHAT DO I NEED TO DO TO GET A 5.00 M33-4 UPGRADE FROM MY 3.71 M33-3?? SOME HELP PLEASE!!!
@sylv3rblade
ei kabayan I’ve upgraded to 5.00 M33-4, ayaw gumana ng games, it says “The game could not be started.(80020321)”
thanks in advance for the help.
@syl
oh, good thing I am curious. Nagreset pala sa normal yung UMD mode. Kailangan i-set sa M33 recovery menu. Thanks anyways, and please do send information kung ano pa yung kailangan kong i-set na ibang bagay para smooth na yung PSP operations ko…salamat.
@ishralene09
actually there’s nothing more. If you encounter a game with that error again just switch UMD modes.
Ok. Thanks a bunch po. Anyways Are you a girl? Curious lang kasi sa avatar.
@ishralene09
lalake dude…
ei syv3rblade, i have psp model PSP-3004 slim lite..i have problem with the custom firm ware of my psp..can you help me please! i already update it into version 5.00..
PSP 3000′s can’t install custom firmware yet.
do you have news when it will be release the custom firmware of PSP 3000???
salamat po
Yeah, nice! But, if you have original software (no customs software like 5.00 m33) yours PSP never Brick!! With hacked versions PSP can stop working after some time! I know what im talking about… You are not SONY that can creates software that never stop working… There always is RISK, isn’t it sylv3rblade???!
@Rxpsp
actually, even just upgrading original firmware there’s a possibility that your PSP will get bricked since you’re still rewriting the firmware.
@rxpsp
sylv3rblade is right. There’s still possibility that the PSP will brick even when upgrading your original firmware. The “brick” thing doesn’t have anything to do with what firmware you have, but on how you do the upgrade. Since upgrading requires flashing the ROM, any wrong move(like running out of power or accidentally turning off the PSP) will cause the flash process to be interrupted, leaving you with I don’t know, a BRICKED device. So yeah, and it also works that way for other devices, unless you can device a method to flash the ROM again, then things are fixed.
“You are not SONY that can creates software that never stop working”
WTF? Even the X360 has the “Red Ring of Death”. It’s not the software man, it’s the hardware. So apparently you DON’T know what you’re talking about. Software will work as long as there is a hardware that it is compatible with.
Just sharing my two cents.
I admit though, that moving from OFW to CFW is quite risky, but with technological advancements such as the Pandora battery, the risk is manageable.
i need help i try putting games on to my psp and it does show up i have version 5.00 M33-3 and i cant find out how to fix it
i download it then and run but on my psp it says The game could not be started (80020148)how to fix it please
bkt ayaw gumana ng CWcheats?
i got the popsloader working with rips from the original game and run in orignal from flash but cant get eboot’s from other people to work
Thanks man… I have just done the update…. the update is done and hope the games will work….
so many errors and bugs Oo
Im not going to download that version then. I will wait for 6.00 or something. And update if is ther any game that really require that.
To many bugs, Updates not working correctly, games not loading… no way!
eh?? The 5.00 M33 update is actually working fine if you ask me. If a game isn’t loading after the update then you’re probabably did something wrong.
este nuevo software es bueno o es igual al 4.01