Sorry, I misread the model it should be CUH-1216B.
Hello, my PS4 Model CUH-1267 only has 2 screws on the back. Can you please explain how to open it. Since a few days it won’t start up again. Starting it, I only get a screen saying “connect the dualshock 4 with a USB-cable an next press the PS-key”, which doesn’t do anything. I got it once in safe mode and tried to reinstall everything, but then it crashed again and now I am stuck! Thanks for your support.