Réponse à : « My ps4 pro beeps once, then the blue light comes on for a second then »Hi. I was facing the same problem console. I decided to open it and do a vacuum clean (had some dirty). I removed and opened the power supply to clean and test. PSU was ok, then I started to worry. Thought o was a logic board issue. With top and bottom panels removed I continued cleaning. Then installed back the HDD and went for a last hopeless test, but for my surprise it started up. I’m not sure about the root cause of the problem. Suspect about some dirt on PSU or logic board that was allowing some current leak. Until the time I wrote this comment I played Gran Turismo Sport and Project CARS 2 for 4 hours with no problem.