Samsung Galaxy S4 GT-I9192 freezed at the startup screen with samsung logo..

A

AC Question

I rooted my Samsung Galaxy S4 GT-I9192 with Cyanogenmod 11 few months back.. it was working perfectly fine till today, while i was using watsapp and my phone freezed suddenly. Nothing was working..then i restarted my phone by long pressing the power button , but the phone is not starting up... the samsung logo appears on the screen and gets stuck at it. nothing happens after that....I have tried to remove the battery and place it back and then starting the phone...issue still persists .. i have tried to boot the phone in recovery or download mode by using (ODIN software) volume key down, home and power button ..but nothing happens... while rooting through odin it is hanged at initialization step process is not getting complete.

Help me in this regard.