Download your chosen modification file. Because these files are large, they are usually compressed into .zip , .rar , or .7z formats. Download a file extractor app (like ZArchiver) from the Play Store to extract the contents. Ensure the final extracted file ends in the or .cso extension. Step 3: Organize Your Directories
Open the PPSSPP app on your Android device. Use the built-in file browser inside the app to navigate to the folder where you saved the .iso file. Tap the game icon to boot it up. Download your chosen modification file