NEWS , my phone is up again!
What i did was unlogic but ill tell maybe it will help somebody else.
First time i tryed everything i saw on web , pressing all combination with power button and volume buttons and nothing was happening. (as you see the post above).
Second i tryed to tape the power button and volume up button (i used some papaer to protect the phone from the the tape), ive let them for about 1 hour or so , i tryed to reset/power nothing happend.
After that i tryed to see if the phone is charging , nothing happend ... then i simply pressed power button and the phone was back alive (the usb cable was removed). My phone came back with 63% battery , it was like around the same when it went dead. Everything seems to work fine now!
Any idea on this? I want to avoid this in the future