N 73 WHITE DISPLAY SOLUTION

In the 1st picture:- you should make the red line then make the blue line. Try two way one by one.Check vcore supply if it's bad remove this.

In the 2nd picture:- you should remove this zokus and apply this jumper below.

NOKIA N70 DISPLAY AND LCD LIGHT SOLUTION

Check or change red marked components for no light on display and keypad, but not for camera flash light.