Installation:
* Download Game Decrypter by Yoshihiro
* Connect your PSP to the computer via USB
* Take your PSP in "USB mode" with the option "USB Connection"
* Click the right mouse button on the file you downloaded
* Choose "Extract Files ..."( WinRAR is advised)
* Choose like destination the letter assigned to your PSP from your computer.
* Press OK and wait extraction files
* Quit the "USB mode" on your PSP
* Then go below to learn how to use the tool
Use:
* Download the utility UMDGen 4.00
With UMDGen *, retrieve the file EBOOT.BIN located in the folder PSP_GAME / SYSDIR your ISO.
* Place this file in the root of your Memory Stick.
* Go into the game menu on your PSP and launch GAME DECRYPT YOSHIHIRO.
* Press Press cross to patch 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 folder there is new EBOOT.BIN patched.
* With UMDGen, replace the original file EBOOT.BIN with the new one.
* Rebuild your ISO and upload it to the folder ms0: / ISO of your Memory Stick.
* Your ISO is now working on your custom firmware GEN.
Have fun playing your 5.55 or even 6.00 games on GEN CFW
Game Decrypter by Yoshihir: http://f6f1677a.seriousfiles.com
UMDgenV4: http://61ed64a1.seriousfiles.com