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Here is how to patch all region and all games that have been released. Most latest games might require a UNTOUCHED iso which is an iso that has just been saved on the memory stick when using a certain homebrew.
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LINKS WOULD BE UPLOADED LATER AS I AM BUSY



NP Decryptor


If you want to patch the PSN games then you must decrypt it first.

Installation:

* Download NP Decryptor
* Connect your PSP at your PC via USB
* Enter USB Connection
* Copy the NPD folder to PSP\GAME
* Follow any of the below methods


Old PSN Games


Using the Tool:

* Download the game from the PSN.
* Locate EBOOT.PBP of the game to decrypt
* Change it's name to NP.PBP
* Copy the NP.PBP to PSP/GAME/NPD/ folder.
* Run NpegDecryptor.The game will be decrypted to the ISO folder with some name as "NPEG-XXXXX.iso" "NPUG-XXXXXX.iso"...it depends the region of the game.
* Use any below method to patch it.


New PSN Games


Some games are unhackable and NP Decryptor can't decrypt them.So this method probably will help.I suggest this method to pandora users ONLY.

Using the Tool:

* Upgrade your PSP to 6.31 or 6.35 OFW.
* Download the game from the PSN.
* Locate EBOOT.PBP of the game to decrypt.
* Change it's name to NP.PBP.
* Copy the NP.PBP to PSP/GAME/NPD/ folder.
* Load the 6.31 or the 6.35 HEN, it depend the FW.
* Run NpegDecryptor.The game will be decrypted to the ISO folder with some name as "NPEG-XXXXX.iso" "NPUG-XXXXXX.iso"...it depends the region of the game.
* Use any below method to patch it.







WQSG_UMD & Prometheus
Installation:

* Download WQSG_UMD
* Download Prometheus v0.5 or Prometheus v0.6 beta1 or Prometheus ME631
* Connect your PSP at your PC via USB
* Enter USB Connection
* Follow any of the below methods
* Install files into your PSP






Prometheus v0.1-v0.5


Using the Tool:

* Create an ISO of whatever 6.20-required game.
* Open that ISO in WQSG_UMD and browse to PSP_GAME/SYSDIR.
* Extract EBOOT.BIN to a temporary folder.
* Use PRXDecrypter (or ISO Tool) to decrypt the extracted EBOOT.BIN file and rename it to EBOOT.OLD.
* Extract the Prometheus RAR archive so you have prometheus.prx and a new EBOOT.BIN.
* In WQSG_UMD drag ‘n drop the EBOOT.OLD, the EBOOT.BIN and the prometheus.prx files back to PSP_GAME/SYSDIR.
* Copy the ISO to your memory stick and try it out.






Prometheus v0.6 beta-v0.6 beta 1


Using the Tool:

* Create an ISO of whatever 6.20+ required game.
* Open that ISO in WQSG_UMD and browse to PSP_GAME/SYSDIR.
* Extract EBOOT.BIN to a temporary folder.
* Use PRXDecrypter (or ISO Tool) to decrypt the extracted EBOOT.BIN file and rename it to EBOOT.OLD.
* Extract the Prometheus RAR archive so you have a new EBOOT.BIN.
* In WQSG_UMD drag ‘n drop the EBOOT.OLD and the EBOOT.BIN files back to PSP_GAME/SYSDIR.
* Copy the ISO to your memory stick and try it out.






Prometheus ME631

* Create an ISO of whatever 6.20+ (6.30 & 6.31) required game.
* Open that ISO in WQSG_UMD and browse to PSP_GAME/SYSDIR.
* Extract EBOOT.BIN to a temporary folder.
* Use PRXDecrypter (or ISO Tool) to decrypt the extracted EBOOT.BIN file and rename it to EBOOT.OLD.
* Extract the Prometheus RAR archive so you have a new EBOOT.BIN.
* In WQSG_UMD drag ‘n drop the EBOOT.OLD, the EBOOT.BIN and all the other prx files back to PSP_GAME/SYSDIR.
* Copy the ISO to your memory stick and try it out.


Also mentioned at the source is that KHBBS works using the above + this extra bit:

* For KHBBS, you have to decrypt BBS1/2/3.DAT then put back to PSPGAME/USRDIR
* For 5.00M33, you have to decrypt all PRX files (EBOOT.BIN，PSPGAME/USRDIR/MODULES/*.PRX) then repack the ISO
* Obvious modification on EBOOT.BIN/PRX files (like sceUtilitO”) are not required.








Iso Tool
Installation:

* Download Iso Tool 1.957
* Connect your PSP at your PC via USB
* Enter USB Connection
* Extract files and put at your MS root the auto_cfw,PSP and the seplugins folders


Using the Tool:

* Dump your UMD in the memory stick.
* Going into the game menu on your PSP and launch Iso Tool.
* Select the ISO
* Select EBOOT decrypt.
* It will ask you to backup the EBOOT.BIN, press yes.
* After that it will ask you if you want to patch it, press yes again.
* Now it will ask you if you want to start, press yes.
* Now select the ISO again and press Patch Prometheus.
* Select any of the Prometheus versions.The ME631 modules are not included, install them manually in the iso tool folder.
* It will ask you to start, press yes
* Done, enjoy your game.








EDecrypt Tool
Installation:

* Download EDecrypt Tool v1.4
* Connect your PSP at your PC via USB
* Enter USB Connection
* Extract files and put at your MS root (or the folder EDecrypt direct to \PSP\GAME


Using the Tool:

* Dump your UMD in the memory stick.
* Install UMDGen 4.00 at your PC
* Open your UNTOUCHED ISO with UMDGen 4.00 and go to File -> File List -> Export... and save it as a .txt file (thisgame.txt for example)
* Close UMDGen
* Reopen UMDGen and reaccess the ISO File
* Retrieve the file EBOOT.BIN located in the folder PSP_GAME / SYSDIR of your ISO (clicking with right mouse button at it and choosing Extract Selected).
* Place this file in the \ENC folder of your Memory Stick.
* Going into the game menu on your PSP and launchEDecrypt.1.3.Tool.
* Press [] to patch and decrypt your file (wait few seconds, then returns to XMB homebrew).
* Connect your PSP to your PC using your USB cable.
* At the \ENC folder is a new folder called "done". Inside the file is located the patched EBOOT.BIN .
* With UMDGen, replace the original file EBOOT.BIN the new resulting file.
* Go to File -> File List -> Import... and import your previous .txt saved list (thisgame.txt for example), the program will warn you about force positions, but accept anyway
* Rebuild your ISO clicking at Save button and upload it to the folder ms0: / ISO of your Memory Stick.
* Your ISO is now working on your custom firmware M33,GEN,MHU,U3R and CFWE.








Game Decrypter
Installation:

* Download Game Decrypter by Yoshihiro v4
* Connect your PSP at your PC via USB
* Enter USB Connection
* Extract files and put at your MS root (or the folder GameZDecryptZ direct to \PSP\GAME)


Using the Tool:

* Dump your UMD in the memory stick.
* Install UMDGen 4.00 at your PC
* Open your UNTOUCHED (an already decrypted one will work fine too in Game Decrypter v3+) ISO with UMDGen 4.00 and go to File -> File List -> Export... and save it as a .txt file (thisgame.txt for example)
* Close UMDGen
* Reopen UMDGen and reaccess the ISO File
* Retrieve the file EBOOT.BIN located in the folder PSP_GAME / SYSDIR of your ISO (clicking with right mouse button at it and choosing Extract Selected).
* Place this file in the root of your Memory Stick.
* Going into the game menu on your PSP and launch GAME DECRYPT YOSHIHIRO.
* Press O to patch and decrypt your file (wait few seconds, then returns to XMB homebrew).
* Connect your PSP to your PC using your USB cable.
* At the root of your Memory Stick is a new folder "decryptor". Inside the file is located EBOOT.BIN patched.
* With UMDGen, replace the original file EBOOT.BIN the new resulting file.
* Go to File -> File List -> Import... and import your previous .txt saved list (thisgame.txt for example), the program will warn you about force positions, but accept anyway
* Rebuild your ISO clicking at Save button and upload it to the folder ms0: / ISO of your Memory Stick.
* Your ISO is now working on your custom firmware M33,GEN,MHU,U3R and CFWE.