While PPSSPP doesn't need a single "BIOS file" to boot ISOs, it does utilize a folder structure known as . This is where the PSP’s internal firmware lives.
Even with the correct files, users often run into issues. Here is how to fix them. ppsspp bios
A: No. The BIOS is hardware-specific. Only a PSP BIOS works with PPSSPP. While PPSSPP doesn't need a single "BIOS file"