Step 1 – Install Custom Firmware on PSP

First of all you need to install latest custom firmware on your PSP:

PSP Custom Firmwares Here

Step 2 – Download PSP Games (ISO/CSO)

Once you’ve installed the custom firmware on your PSP now download your desired PSP Game (ISO/CSO).If the downloaded PSP game is a compressed .zip or.rar file then make sure to extract iso/cso using Winrar

Step 3 – Copy ISO / CSO on PSP

• Connect your PSP to your computer via data cable. On your PSP, go to Settings > USB Connection.
• Your PSP memory stick will appear as a removable device on your computer.
• Open the memory stick and go to ISO folder. If there’s no ISOnamed folder then create one and make sure you name it in Caps (ISOnot iso).
• Now copy the downloaded PSP Game ISO / CSO file into ISO folder.
• Disconnect your PSP from your computer.

Step 4 – Configurations

• Turn your PSP completely OFF by holding down the power button for 7 seconds.
• Hold down the R button and turn your PSP ON to boot into Recovery Mode.
• Go to Configurationand make the following changes:
  • Game folder hombrew(currently: 5.xx Kernel)
  • UMD Mode (Currently: M33 driver -NO UMD-)
• Go back to Main Menu then Advance > Advance Configuration.
  • Enable Plain modules in UMD/ISO
  • Disable “Execute BOOT.BIN in UMD/ISO”
• Go back to main menu and select Exit. Your PSP will Reboot and turn back ON.

Step 5 – Play the Game on PSP

From the PSP home Menu, go to:

Game > Memory Stick

and play your desired PSP game (ISO/CSO) on Custom firmware.

Have fun!