Lol, you don't hold it down to turn it off, if you want to reset display settings or go into safe mode. You hold it down while turning it on. Try this*. Turn off your PS3, then press the power button, don't let go, wait until beeps, then stop pressing the power button -> goes into display reset mode.
How to turn on Ps3 super slim with broken power button. zaeek. 31 subscribers. Subscribe. 4.6K views 7 months ago. With just one tool, you can turn on your Ps3 with broken power
When you start or quit PlayStation®2 format software, controller number assignments are cleared. Follow the steps below to assign controller numbers. When starting a game: Press the PS button on the controller when the game is displayed on the screen. When quitting a game: Press the PS button on the controller when the home menu is displayed.
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