Things i did:
1.Let it charge for almost 13 hours
2.I tried to flash a new firmware it didn`t work reason:
I downloaded a stock firmware also a flashtool and i chose flashmode chose my firmware and i held the VOLUME DOWN button and plugged my USB Cable but i only get RED LED it doesn`t work it doesn`t boot up, Once it booted and my PC did not recognize the Phone and i got an Error on the flashtool (Using Windows 8) after it booted up the PC picked up the signal from the phone but my phone continued BOOTING and went to the sony xperia logo and got stuck there....
PLEASE HELP ME I AM ALMOST 1 WEEK ON THIS PROBLEM PLEASE