How to fix Blue light of death?

Common troubleshooting steps
Step 1. Call Sony Tech Support to Request Update Disc. 1800-345-7669 
Step 2. check HDMI cable is making contact with port. (check for broken parts/bent pins)
Step 3. Hold power button till PS4 turns off then Disconnect the power cord from the PS4 for 1 minute then reconnect.
Step 4. Turn on TV and select the correct video output for PS4.
Step 5. Connect the Controller to the PS4 Console via cable
Step 6. Press & Hold the 'PS' button on the controller until the Blue light turns Orange.
Step 7. Then Press & Hold PS button (on the controller) again, until the Consoles light turns White.
Step 8. Wait for PS4 to turn on & display picture on TV
[PS4 Factory Reset]
Step 9. Press & Hold Ps button until the console turns off.
step 10. Then press & hold PS button until you hear 2 beeps.
[Service/Safe Mode]

Step11. select restore PS4 and it will Reset PS4 to back to new
step12. some had luck taking out hard drive and turning on ps4 but some gamers also just had a loose connection on hard drive.
step 13. do "Hard reset" Unplug ALL Cables from PS4 for 10 minutes then connect all cables and powercord