If you download a PKG labeled “5.05 Backport,” it has already been modified. However, you still need to install the game’s update patch separately—often the backport is inside the update (patch) PKG, not the base game PKG.
Developers in the scene (e.g., CyB1K, Opoisso893) have created tools to patch high-firmware PKGs so they run on low firmware. A “backported” PKG includes modified system calls (libSceKernel) to trick the game into thinking it is on a higher firmware. ps4 pkg download work
is for developers with a Sony-issued Dev Kit or for downloading your purchased games from PSN. You do not handle standalone PKG files. If you download a PKG labeled “5
What does it mean for a PKG file to “work”? Does it simply mean downloading a file and copying it to a USB drive? Or does it require specific firmware, custom software, or hardware modifications? What does it mean for a PKG file to “work”