unfortunately camera has stopped

Hello frnzzz plz help me to solve my sony xperia z2 d6503 camera problem its suddenly came into my mobile i have tried all thing with this phone hard reset soft reset i downgrade this to kitkat from lollipop but my problem is as it is i tried another camera but no progress i get this phones camera is working fine in another z2 board i have tested all thing in this phone so i got the reason of not working the camera... There is some kind of shorting near camera because sometimes its very heatup at camera side and draining battery very quickly in service mode i can see a msg that is camera not connected when i start my camera a msg box came to me that is unfortunately camera has stopped i know its a hardware fault but can't gind the right solution.... Plz help me anybody to solve this problem..... Please please please....