In the DuckStation dropdown menu, select this file as your primary BIOS, or set it to "Auto-Detect".
The existence of on public repositories is legally gray. Sony owns the copyright to the code within the BIOS. Therefore, while the emulators themselves are legal, distributing the BIOS file is technically a copyright violation. This is why most reputable GitHub projects provide the software but require the user to "provide their own BIOS," which involves extracting it from their own hardware. Conclusion psxonpsp660.bin github
Ensure the filename is exactly lowercase: psxonpsp660.bin . Some emulators are case-sensitive and will fail to recognize capitalized extensions (like .BIN ). Locate the System Folder: RetroArch: Place the file inside the system directory. DuckStation: Place the file inside the bios directory. In the DuckStation dropdown menu, select this file