Phone is dead. Doesn't power on, can't charge - NOTHING! topic

I've searched in Google about the topic and I realized I'm experiencing something that called "Sudden Death", and it is very common.
My phone doesn't power on no matter what I do:

• Pressed the power button for 30 seconds


• Pressed power + Vol down for 30 seconds


• Pressed power + Vol Up for 30 seconds


• Pressed power + Vol down + Vol up for 30 seconds


• Tried to connect to a PC to see if I can do something with PC COmpanoin

Is there something I missed?
Please help me

xda-developers