You might see a specific error code (such as CE-32937-4, SU-30746-0, or simply a stuck progress bar), but often, the system just freezes or crashes with a vague message reading: "Cannot install the update file."
If you are using the Orbis Patch Installer or similar homebrew applications, try these steps first: Update the Application patch installer ps4 error
If the patch file itself is corrupted, you need to delete it manually. You might see a specific error code (such