The "4K Pro" CFW is typically designed for and early Slim models (CECH-20xx, 21xx, and some 25xx). It requires a hardware-flashable NOR or NAND chip.
Note: This write-up is for educational purposes only. Modifying your console may void warranties and violate terms of service. Ps3 4k Pro 4.89 Download
Stick to Sony’s official firmware (or HEN for Super Slims) and enjoy the console as intended. The "4K Pro" CFW is typically designed for