You can make the CFW , meaning it will stay installed even if you turn the PSP off completely.
Here are the key features of (most commonly using PRO-C2 or LME-2.3 ): psp 6.61 custom firmware
By following these recommendations, PSP owners can enjoy the benefits of a customized and enhanced PSP experience while minimizing the risks associated with installing custom firmware. You can make the CFW , meaning it
Before installing Custom Firmware, your PSP must be running the official Sony firmware version 6.61. You can make the CFW