The installation was very easy.
1. Push) cover
2. Loosen) screw
3.) hard drive out
4. Change) hard drive 4 screws tighten by hand
Insert and screw 5) HDD carrier
6. Replace) flap again
Then insert the USB with the latest firmware and the PS4 switch while the switch button 7 seconds. Connect PS4 controller wired and restore the system. The whole process took 10 minutes and the longest of which was the copy of the firmware on the USB stick. This also gets any untrained screwdriver out in 15 to 20 minutes. Really top of the Sony so easy to make. Too bad that you have used only a 500GB drive ;-)
Conclusion: 1315 GB space available after installation are available instead of the standard 407 GB. The only drawback * laughs * after conversion all update load of Killzone Shadow case that was exhausting and crying out for a Game of the Year Edition ;-)