Psxonpsp660.bin Scph101.bin Scph7001.bin Scph5501.bin Scph1001.bin May 2026

When converting a PS1 game to play on a PSP or PS Vita (via Adrenaline), you will load a conversion tool like PSX2PSP or PopStation GUI. The tool will ask for a "BIOS file."

If you have ever dabbled in emulating PlayStation 1 (PS1) games on your PC, smartphone, or PlayStation Portable (PSP), you have likely encountered a frustrating error: "BIOS not found" or "Missing SCPH1001.BIN". When converting a PS1 game to play on

The cryptic string of filenames—psxonpsp660.bin, scph101.bin, scph7001.bin, scph5501.bin, scph1001.bin—represents the digital DNA of the original Sony PlayStation consoles. Without these files, modern emulators cannot accurately replicate the behavior of the original hardware. Without the exact BIOS file matching the emulated

This article will explain exactly what each file is, why you need them for POPStation on the PSP, the legal implications, and how to use them correctly. even the best emulators like DuckStation

Unlike modern PC emulators that can recreate chip behavior through high-level emulation (HLE), the original PlayStation required low-level emulation (LLE) of its CPU (MIPS R3000a) and its proprietary subsystems. The BIOS provides:

Without the exact BIOS file matching the emulated console region and revision, even the best emulators like DuckStation, ePSXe, or PCSX-Reloaded will refuse to run commercial games.

The five files represent different PlayStation console BIOS revisions spanning 1994–2006. They originate from various hardware models and one PSP emulation payload. Key findings: