Are you seeing a (e.g., "BIOS not found")? I can provide a step-by-step guide for your specific setup.
The BIOS in a PlayStation is essentially the firmware that controls the basic operations of the console, including initializing hardware during boot-up, providing a user interface for settings, and acting as a bridge between the console's hardware and its games. For emulation or when using a flash chip to upgrade or modify a console, having the correct BIOS is essential.
To ensure you have an authentic "repack" or dump, verify the file's hash. The standard MD5 for a clean scph5502.bin 32736f17079d0b2b7024407c39bd3050 Placement: Typically, this file belongs in the folder of your emulator directory.