Android 11+ restricts file access. Make sure the USBUtil app has "All Files Access" permissions.
Ensure the ul.cfg file was copied to the exact root of the USB drive. If you have multiple games, they must all share a single, combined ul.cfg file generated by processing them together or appending them using USBUtil.
For most modern users, the better "Android solution" is . While not USBUtil, OPL Manager is a native Android app created by the PS2 homebrew community. It performs the same essential tasks—managing game art, splitting ISOs, and formatting them for OPL—but it runs natively on Android without the need for emulators. download usbutil for android work
Both Ultimate USB and USB Tools are . To use coin-required features:
: Use OPL Game Utility to select your ISO file. If it’s over 4GB, the app will split it into smaller parts (e.g., ul.XXXXXXXX ). Android 11+ restricts file access
If you can share a little more about what you're hoping to do with the USB utility—like if you just need to move files, or if you want to turn a USB drive into a bootable Windows installer—I can recommend which app is the very best fit for your needs.
To avoid confusion, here is a quick comparison: If you have multiple games, they must all
Plug the USB drive into your PlayStation 2, launch Open PS2 Loader (OPL), and your game will appear in the USB games list, ready to play. Troubleshooting Common Issues The Emulator Crashes When Loading USBUtil