Ask PlayStation on Twitter: "Sorry to hear that you are having issues with your PS4. Please check this fix and replace guide where you will find some steps recommended for your scenario:
PlayStation 4 Hard Drive Replacement - iFixit Repair Guide
Fix & Replace | PlayStation Support | Sony PlayStation
PS4 HDMI Port Repair / Replacement
PlayStation® Fix & Replace in the US and Canada
PlayStation® Fix & Replace in the US and Canada
Fixed: PS4 Won't Turn On - EaseUS
How to Repair a Playstation 4 HDMI Port – Clever Creations
Fix & Replace | PlayStation Support | Sony PlayStation
PS4 Power Supply Repair Or Replace in Bengaluru, Kumarswamy Layout, 2nd Stage by E Gamez Store | ID: 16688204991
Fix & Replace | PlayStation Support | Sony PlayStation
8 Ways to Fix a PS4 That Won't Turn on
Fix & Replace | PlayStation Support | Sony PlayStation
PlayStation HDMI Port Repair PS4 & PS5 - Celtic Repairs
Expert Gaming Console Repairs | GameStop Ireland
How to Fix It When a PS4 Won't Take, Read, or Eject a Disc