w850i when pwr on its only vibrate
 

i have w850i stip problem change the stip
in open set its ok then i close the set its
lcd white and blinking i open again check the stip
in open set its ok i wash the set by ctc and pwr on the set
its vibration and white screen its may be short
plz help me where is the problem
:confused::confused::confused::o:o

For w850 white screen happens when sliding flex, upper navigate keyboard, and board connector are faulty. . Sometimes is pcb board.