Why my ps3 plays no video neither goes to safe mode

One day I decide to restore my ps3 sistem but it breaks and stayed by 5% over 3 days. Then i shut it down taking of the wires. When i turn back up i went to safe mode and i made it reset my files. When the ps3 is back to life it ask me for an update and i sayed yes, after downloading and installing it restarted and its like these for days, no video, no audio, i tryied both cable and doing the 5 seconds holding and after the second beep release, i tryied but it wont work with both cable, av cable and hdmi, i tryied too taking off the hard disk but it wont work. What do i do?