This article will teach you how to add games that you have downloaded to your computer to your PSP so that you can play them afterwards like normal PSP games. Before your PSP will recognize the downloaded games, you will need to install custom firmware on your PSP.
Steps
Part 1 of 2: Adding games to the PSP
Windows

Step 1. Turn on your PSP
To do this, press the start button on your PSP.

Step 2. Make sure your PSP can play downloaded games
Your PSP must be updated and have custom firmware installed before you can put downloaded games on it.
- If you haven't already done so, please install custom firmware on your PSP before proceeding. This allows you to play downloaded games.
- You also need to download the game you want to put on your PSP.

Step 3. Connect your PSP to your computer
Connect the USB end of your PSP's charging cable to your computer, then plug the charging section into your PSP.

Step 4. Open Start

Click the Windows logo in the lower left corner of the screen.

Step 5. Open File Explorer

It's at the bottom left of the Start screen.

Step 6. Go to the folder where your game's ISO file is stored
If you downloaded a video game to put on your PSP, you will likely find the ISO file in the game's folder.
- Some games use CSO files instead of ISO files. If this is the case with your game, then you should search for the CSO file instead.
- Usually you can find the folder where the ISO file (or game folder) is stored.

Step 7. Click on the ISO file
That's how you select it.

Step 8. Click Start
This tab is in the top left corner of File Explorer.

Step 9. Click on Copy
It's to the left of the "Start" toolbar at the top of the window. This copies the selected ISO file.

Step 10. Click on the name of your PSP
You can find it in the left folder sidebar, although you'll probably have to scroll down to find it.
If you don't find the name there, click on the "This PC" folder instead, then double-click on the name of the PSP under the "Devices and drives" heading

Step 11. Make sure your PSP contains an ISO folder
Locate a folder named "ISO" (not "iso") in the PSP folder. If you don't see this folder, create it before continuing:
- Click on the 'Home' tab.
- Click on 'New folder'.
- Type ISO (not iso) and then press ↵ Enter.

Step 12. Open the 'ISO' folder
Double click on it to do this.

Step 13. Click the Home tab again
The "Start" toolbar will appear at the top of the File Explorer window.

Step 14. Click on Paste
It's to the right of the "Copy" option in the toolbar. This will copy the ISO file to your PSP's "ISO" folder.
This may take several minutes

Step 15. Eject your PSP and disconnect from your computer
Once the ISO file has been transferred to your PSP, you can click on the USB stick icon in the lower right corner of the screen (you may need to click the '^' here first) and then 'Eject'. After this, it is safe to physically disconnect your PSP from your computer.
mac

Step 1. Turn on your PSP
To do this, press the start button on the PSP.

Step 2. Make sure your PSP can play downloaded games
Your PSP must be updated and have custom firmware installed before you can put downloaded games on it.
- If you haven't already done so, please install custom firmware on your PSP before proceeding. This allows you to play downloaded games.
- You also need to download the game you want to put on your PSP.

Step 3. Connect your PSP to your computer
Connect the USB end of your PSP's charging cable to your computer, then plug the charging section into your PSP.

Step #4. Open the Finder
This app has a blue icon in the shape of a face and is located in your Dock.

Step 5. Navigate to the folder where your game's ISO file is stored
If you downloaded a video game to put on your PSP, you will likely find the ISO file in the game's folder.
- Some games use CSO files instead of ISO files. If this is the case with your game, then you should search for the CSO file instead.
- Usually you can select the folder on the left side of the Finder window.
- You may need to click "All My Files" in the top left of Finder and then type the ISO's name into the search bar at the top right of the Finder window to locate the ISO.

Step 6. Select the ISO
Simply click on the ISO file to select it.

Step 7. Click Edit
This menu item is located at the top left of your screen. This will open a drop-down menu.

Step 8. Click on Copy
It's near the top of the drop-down menu. This will copy the ISO file.

Step 9. Double click on the name of your PSP
It's on the left side of the Finder window, just below the "Devices" heading. This will open your PSP's folder.

Step 10. Make sure your PSP contains an ISO folder
Locate a folder named "ISO" (not "iso") in the PSP folder. If you don't see that folder, create it before continuing:
- Click on the 'File' menu item.
- Click on 'New folder'.
- Type ISO (not iso) and press ⏎ Return.

Step 11. Open the 'ISO' folder
Double click on it to do this.

Step 12. Click Edit again
A drop-down menu will appear.

Step 13. Click on Paste
It's near the top of the drop-down menu. This will copy the ISO file to the "ISO" folder.
This may take several minutes

Step 14. Eject your PSP and disconnect from your computer
Once the ISO file has been copied to your PSP's "ISO" folder, you can eject the PSP from your computer by clicking the up arrow to the right of its name. After this, it is safe to physically disconnect the PSP from your Mac.
Part 2 of 2: Playing games on the PSP

Step 1. Restart your PSP
To make sure that the game files are incorporated correctly, you have to turn off the PSP and then turn it back on via the start button.

Step 2. Select Game
You may need to scroll left or right to see this option.

Step 3. Scroll down, select Memory stick and then press X.
This opens the PSP's internal memory where the game is stored.

Step 4. Select your game and press X
This will load the game. As long as you placed the ISO file in the 'ISO' folder of your PSP, the game will launch correctly.
Tips
Before installing custom firmware on your PSP, check out the options available to make sure you're installing the latest version
Warnings
- In most countries it is illegal to download commercial games without purchasing them first.
- Installing custom firmware on your PSP will void the warranty.