This is the step most people miss.
Allowing a game that requires a higher system firmware (e.g., 9.00) to run on a lower jailbreakable firmware (e.g., 5.05 or 6.72). DLC/Update Integration: driveclub ps4 pkg fix
A common bug: You launch Driveclub, see the intro logos, then the screen goes black with no sound. The console is not frozen (you can still return to the home menu). This is the step most people miss