Posted by 
September 30, 2009 •
So you’ve tried the version.txt hack and it didn’t turn out well (in short, it didn’t work for you). It’s admittedly a hit or miss bypass since not all games relied on checking a version.txt file to see if you were running the right firmware version. To date, the best and most reliable way to be able to play games that require OFW 5.03 to 5.50 is to upgrade to 5.50 GEN-A/5.50 GEN-B (no luck for partially hackable PSPs).
But what if you had a game that requires 5.55 or 6.00? Well, there’s this method.
Important Update: This guide has long since been outdated by Sony’s recent patches, to play the latest PSP games, you need the Prometheus module. You can find the install for 5.03 GEN-C, 5.50 GEN-3, 5.50 GEN-D4 and 5.00 M33 linked here.
Important Note: This is ONLY for PSP users who have the following custom firmware installed: 5.50 GEN-A, 5.50 GEN-B, 5.50 MHU, 5.03 GEN-A, 5.03 MHU and 5.00 M33. If you have anything below this, consider upgrading.
Update: Added Eboot Patcher for people running 5.00 M33, 5.03 GEN-A, and 5.03 MHU.
Requirements:
- A PSP with any of the following firmware installed: 5.50 GEN-A, 5.50 GEN-B, 5.50 MHU, 5.03 GEN-A, 5.03 MHU and of course 5.00 M33.
- Download: UMDGen | UMDGen
- Download : Game Decrypter v4 | Game Decrypter v4
Important Note: version 4 of Game Decrypter works well with 5.00 M33, 5.03 MHU and 5.50 MHU. 
- Open the ISO of the game you want to hack with UMDGen
- Important: Go to File > File lists > Export and save it as game.txt.
- Go to PSP_GAME > SYSDIR. You should see an eboot.bin file.
- Right click on the eboot.bin file and choose Extract Selected. Place it somewhere on your PC that’s easy to remember. The desktop is good. Just don’t close UMDGen yet, you’ll still need it later
- Extract the files for Game Decrypter to your PC. Copy the PSP folder from the extracted files right into the root of your memory stick. Note: The root of your memory stick is the actual drive your PC sees when you connect your PSP.
- Copy the eboot.bin that you’ve extracted in step 5 to the root of your memory stick. Note: If your PSP is F:, it should appear as F:\eboot.bin
- Disconnect your PSP from your PC and run Game Decrypter from the XMB
- You will see the screen below. If you’re on 5.50 GEN-B2 Press X to decrypt the eboot.bin. If you’re on 5.00 M33 or 5.03 GEN_A or 5.03 MHU, press O
- Connect your PSP to your PC again. At the root of your memory card, you should see a new folder called DECRYPTOR. Copy the eboot.bin that’s inside it to your PC.
Important Note: If you’re running 5.00 M33 or 5.03 GEN-A or 5.03 MHU, make sure to follow the steps below:Eboot Patcher
- Download and extract the Eboot Patcher (Mirror 1).
- Start PC program Eboot Patcher (the executable is named Patch.exe)
- Clicking on Browse, select the EBOOT.bin by patch
- Click on Go! to patch the file
- On your PC, Add the newly decrypted eboot.bin into the SYSDIR folder that’s on UMDGen by right clicking on the right pane, Add > Add files.
- On your PC, Add the newly decrypted eboot.bin into the SYSDIR folder that’s on UMDGen by right clicking on the right pane, Add > Add files.
- Import the game.txt that you’ve extracted in step 2 via File > File List > Import.
- Save (Rebuild) your game as CSO or ISO
- Your game should work now.
Important: Make sure you delete the Decryptor folder on your PSP before trying to decrypt a new game.
FAQS:
Help! I’m getting just a black screen when playing a game hacked with this method. You have a game that’s not compatible with this method 
Either that or your missed a step. Try to look for an eboot.bin file, skip to step 9 and test it out if you want.
Is this safe? Yes. 100% Safe
What games have been tested with this method?
| Game |
Status |
| Fuusa Sareta Shibuya de (JAP) | Working |
| AFL Challenge (EUR) | Working. Just Output it as CSO with compression level 9 |
| Armored Core 3: Portable (JAP) | Working |
| Cloudy with a Chance of Meatballs (USA) | Working |
| Beaterator (USA) | Working |
| DIRT 2 (EUR) | Working |
| Disgaea 2: Dark Hero Days (USA) | Working |
| Evangelion Battle Orchestra (JAP) | Working but save isn’t |
| G.I. JOE: The Rise Of Cobra (USA) | Working |
| G.I. JOE: The Rise Of Cobra (EUR) | Working |
| Gran Turismo Portable (USA) | Working |
| Gran Turismo Portable (EUR) | Not working (probably a BAD DUMP) |
| Kateikyoushi Hitman Reborn! Battle Arena 2 (JAP) | Working |
| Marvel: Ultimate Alliance 2 | Decrypt EBOOT.BIN using Game Decrypter v2 |
| Motorstorm (EUR) | Working |
| Motorstorm USA | Working |
| Naruto Shippudden Akatsuki Rising (EUR) | Working |
| Rugby League Challenge (EUR) | Working |
| Shin Megami Tensei: Persona (USA) | Working |
| Tales of VS (JAP) | Working |
| Tenchu San Portable (JAP) | Working |
| YS Seven (JAP) | Working |
| Yu-Gi-Oh! 5D’s Tag Force 4 (JAP) | Working |
Credit goes to:
Yoshihiro, Team GENyUS, and everyone else over at PSP GEN.
Incoming search terms:
- 6 20 pro-b5 evangelion jo
- umdgen 5 0
- télécharger firmware 5 55 gen 5d psp
- tales of vs gen 5 50 d2
- psp systemsoftware 5 03 prome-3 dragonball z abspielen
- psp save game decrypter
- prometheus iso loader compatile with 5 55 ofw?
- playing pc games on psp ofw
- katekyo hitman reborn psp Eboot
- I downloaded Assassin\s Creed: Bloodlines When I went to play it it said game could not be started
please help me in step 10..
please give me the full information about step 10..tnx
Grand_Theft_Auto_Chinatown_Wars_USA_PSN_PSP-HR works on 5.50 GEN-B after decrypting eboot.bin by Decrypter V4.
Regards
i did all the steps with persona but the eboot was unable to patch with the patcher, so i continue on with the rest, when i load the game its goes into a black screen, tried changing umd to sony but still cant, please help thank you
Hey guys,I have just installed 5.50 GEN-D Firmware,how can i get this to work?
When i start the decryptor which version of psp should i choose?Should i press X or O?
I pressed O,decrypted the file successfuly but then the patcher which you browse for the decrypted eboot.bin created a file named “eboot.bin.bak”(it’s in the same folder with the eboot.bin) Which file should i have to choose to replace the original eboot.bin in UMDGEN?eboot.bin.bak or eboot.bin?
You don’t need this if you have 5.50 GEN-D.
hi, can any one help me? i just installed 5.50 gen-a, then i put in ‘dissidia final fantasy’ and it come out “the game could not be started (80020148)
Press and hold select until you see the VSH menu, change the UMD mode to M33 driver.
it stiil the same… and gran turis mo also… it came out the same word…
Can i play GTA Chinatown wars with this method?
You can use this method or install 5.50 GEN-D (if your PSP is hackable) or 5.03 GEN-B if it’s not
When i try to patch the eboot.bin with the eboot patcher i get the error:The file Did Not Patched!
The file you’re trying to patch has already been patched.
hi…this page helped me alot…..im using psp2000 ..im using the method mentioned above..ive decrypted naruto akatsuke rising , Gran Turismo USA and some other games.(forgot the names too many )..well only once i failed . using psp 2000 is it ok to upgrade to upgrade my cfw 5.000 m33 to 5.50 GEN D?
Yep. It’s actually a lot better to upgrade to GEN-D rather than decrypt games manually.
hey can i upgrade from 5.50 MHU to 5.50 Gen D ??? if ..then how??????
i have motostorm i did as shown in the psge but when i start the game it shows
“this game could not be started”
and a bracket of something like this below it{80020148}i am using a psp 3000 slim and lite with cfw 5.03 gen -a can u help me with this
uhm..ayaw madecrypt nung disgaea 2 ko..stuck ako sa step 8..di raw madecrypt..tulong naman
Anong firmware gaming mo?
Switch ka na lang sa 5.50 GEN-D2 or 5.03 GEN-B para di ka na dadaan sa decrypting stage.
sylv3rblade gud morning,
whew i do have this question, im trying to dycrypte the assasins creed bloodlines so that it would work on my psp model 2006 series 2000 with partial hack, version 5.03 mhu with cfwenabler 3.60 by xenogears and becus25,
my problem is this,
I did use umdGEN and the game dycrypter ver 4 of yoshihiro v4,
I copied the game dycrypter to my psp and had executed it, it run however when i press O i did get this message
mso:Eboot.bin not found.
in short i cannot patch my eboot.bin so im stuck on the step 8.
Please help… what should i do? how can i dycrypte assasins creed bloodlines so that i could play it in my psp… thanks,, this is your avid fan
Hey im wondering can i go from 5.00 m33-5 to this version (Gen D) becuz i really wanna play Little Big Planet. Im wondering is it safe so it dont break my psp and is Yugioh Tag Force 4 patched? and can i convert back to m33-5 if i feel like it?
5.50 GEN-D is very stable and upgrading is safe (just don’t experiment, read the instructions carefully). And yes, you can still downgrade your PSP using the Hellcat’s recovery tool or something similar.
Thanks sylv3rblade :]
Real quick question, im stuck on the part about the patching. i dont kno witch eboot to patch. it keeps saying file has not been patch. what do i do
Also is this for psp 1000? (aka Phat)
err…tnx..na idecrypt ko na ipapatch ko na lang..kasi di ko mai-patch nung una..
ahm..ayaw mapatch ng eboot.bin ko ng disgaea 2..5.00 m33-6 gamit ko..help
pd na bang gamitin ang firmware na to sa PSP3000 with version of 5.50?
kailangan ba lahat ng firmware na to iinstall sa PSP3000?
* Install Popsloader on your PSP
* Install PSP Custom Firmware 5.03 GEN-B via ChickHEN R2
* Install PSP Custom Firmware 5.50 GEN-D
* Install PSP Custom Firmware 5.50 GEN-C
* Upgrade GEN CFW with XGEN Updater
* Install PSP Custom Firmware 5.50 MHU
* Play games that require OFW 5.50 with version.txt hack
* Hold+ v3.8 Plugin for Custom Firmware
* Convert your PSP to custom firmware without Pandora Battery
* Install PSP Custom Firmware 5.50 GEN-B
pls help me naman po. thanks
Kapag mas mataas sa 5.03 ang firmware ng PSP-3000 wala pa magagawa para ayusin to at installan ng custom firmware.
Hi…I’ve V5.55 PS3000. I followed all your steps but it did’n work. I’ve put EBOOT into the root but nothing appears.
I don’t know hot to put for the first time the firmware…Could you help me please?
Hey help please…
Is Jak and Daxter working only in 5.50 CFW?
Please help because whenever I start the game it says “The game could not be started (80020148)”
Help Please Thanks!
Hi…
I read the tutorial above & one of the prerequisite is to have these CFW (5.50 GEN-A, 5.50 GEN-B, 5.50 MHU, 5.03 GEN-A, 5.03 MHU and 5.00 M33)
It does not mention CFW Enabler
My PSP mobo version is T-088 V3 so it is only partially hackable
That’s y I used CFW Enabler to play CSO/ISO games
Can I use this method in my PSP to decrypt the game files?
Thanks in advance
5.03 MHU IS CFWEnabler.
salamat bro its help me a lot.
Thanks a lot for the info mate
Coz inside the system after enable CFW Enabler it stated as 5.03 M33-6
Neway…I did find another way (from Atmaexplorer that I didnt notice before) by installing Gen-B on Chick HEN R2 to play latest ISO/CSO games
The creators of CFWE actually changed the version from 5.03 M33-6 to 5.03 MHU after several version of their firmware (I forgot which one started the 5.03 MHU version though)
I got a Persona orginal UMD that require 5.55. How do i play the UMD on my psp with cfw? (Psp slim with 5.50 gen-B) This method is for downloaded version of persona?
Hi i have tried to do this with F 1 2009 and eboot pathcer does not want to patch the file can anybody help, i’m running m33-6
Hey Chazz try to upgrade to CFW 5.50 Gen-D2, i can play persona without going through all this with gen-d2.
can I install 5.03 GENA and B after I had instaledl CFWenabler 3.6 MHU
thanks
not working please helpgame encryptor says cannot open file corrupted i have v5.55
The decrpyter will only work on PSPs with CFW.
ok this is what ive been trying to figure out….Jikkyou Powerful Pro Yakyuu Portable 4…..tried the Eboot….doesnt go past the first loading screen…a message comes up with a loading screen and BAM blackscreen` any help? im in japan and its a little hard to find information. oh and the dl was a cso….am i fucked because i dont have the original ISO?
I just upgraded to 5.50 GEN-D3 and my persona still doesnt work. Is it okay to proceed with the decryption using this firmware?
Hmm that’s weird. Yep you can proceed to decrypt it.
I tried and it won’t work, I jst downgraded back to GEN-B and the decrypter still wont work, it says “unknow blah blah with a
” LOL. The PSP is still safe and sound though.
tested with gta chinatown wars and metalslug x so far, version 5.0 m33-6,
( i skipped the eboot patcher part though, just merged the iso with decrypted eboot )
thanks for the article !
i have a psp 1002 with 5.00m33-6.
i tried doing this with silent hill: shattered memories but when i tried to patch it,
it says it was not successfully patched
PLEASE help
i want to play tekken and bleach but my psp is version 6.00, can you help me with my problem? please reply to my msg, thanx a lot
the decrypter says cannot decrypt
and i am having cfw 5.00m33-6
That happens with games that have already been decrypted. Either upgrade or find an untouched ISO.
mine is PSP 2000 n i downloaded FIFA 11 but it shows the game but not playing… my System Software is 5.50 GEN-D3… now i have to update it or new …. whatever u guys help me out… i really wanna play GOD OF WAR n FIFA 11