: Open RPCS3 in Linux and install the PS3 firmware.
On a jailbroken PS4 (running custom firmware like ), users can boot into a Linux OS (such as Gentle Linux) from a USB drive. ps3 to ps4 pkg install
via PKG files is not natively supported by the console's hardware. Because the PS4 is not backward compatible with PS3 discs or standard PS3 digital files, users typically must use an emulator like running on a Linux payload or utilize official digital upgrade programs for specific supported titles. Methods for Running PS3 Content on PS4 : Open RPCS3 in Linux and install the PS3 firmware