When uLaunchELF (uLE) shows the mass:/ (USB) folder as empty, it almost always comes down to a hardware incompatibility or a formatting error. The PlayStation 2 Go to product viewer dialog for this item.
Even if your drive is FAT32, uLaunchELF often ignores "Logical" partitions. It wants the USB drive to be set up in a specific way. ulaunchelf mass empty
Implications of Using ULAUNCH ELF Mass Empty When uLaunchELF (uLE) shows the mass:/ (USB) folder
Still nothing. The USB light flashes when I plug it in, but mass: shows empty. ulaunchelf mass empty
Tip: Windows often prevents formatting drives larger than 32GB as FAT32. You may need a third-party tool like GUIFormat to do this.