E71 display white green,LCD solution

Step 1: check vio =1,8v at C2455, L2451, C2454 and  pin 24 of {X2450 connector display}
Step 2: check Vaux =2,8v at C2452,l2450,c2451,c2450 and pin 1 of {X2450 connector display}
Step3: reworked or replaced Z2451,Z2450{display ic}
Step4: reworked or check D2800 {CPU}