In your emulator's settings (e.g., RetroArch's Core Options), ensure the PS1 core is set to use this BIOS. Some systems may require you to rename it to a "standard" BIOS name like scph5501.bin to trick the software into using it. Verification:
For years, the emulation community debated the best way to play PS1 games on PSP. Initially, users relied on the SCPH1001.bin . While functional, it often required converting games into specific file formats (like PBP) and could suffer from audio glitches or freezing. Psxonpsp660.bin-
A common debate is version 6.60 vs. 6.61. Sony released version 6.61, which has a corresponding file: psxonpsp661.bin . In your emulator's settings (e