COMING THEN NOT OPEN ANDROID? I CANT ON MY DELL XCD 35 PHONE ON BATTERY , IN CHARGER WHEN I PLUG IN RED CHARGING LIGHT IS GLOWING AND DELL LOGO COMES AUTOMATICALLY AND THEN OF AGAIN CAME DELL LOGO AND OFF MOBILE NOT OPENING (ITS ROLL BACK) AND I AM VERY MUCH PROBLEM , I AM TENSED ! WHAT...