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: It removes the original BIOS's legacy elements like the CD player and memory card manager, which speeds up the transition from boot-up to gameplay. How to use it

: Since it is region-free, a single file can boot games from the US, Japan, and Europe without needing to swap BIOS files for different regions. How to Install and Use : The file must be placed in the folder at the root of your device's SD card. Case Sensitivity psxonpsp660bin better

You are likely running Custom Firmware (CFW) such as PRO-C2 or ARK. You have a game converted to an EBOOT.PBP file. : It removes the original BIOS's legacy elements