Blank screen i was using my nokia n81 8gb suddenly the display dissappears and black light appears. please solve my problem

please format the phone , use this code to format the phone
first switch of your phone then press the star(*) three(3) and call button holding these button and switch on the screen displays blank white screen for sometimes and then on .

then try to use the camera and check the flash,
if the problem check the flash hardware

WHITS SCREEN DISPLAY.

hi,
there are two kinds of white screen in n70 ,
the first one is because of damage LCD (glass screen) ,
defective display driver (small chips that makes the display works)
and the other one is corrupted software...in damage lcd the phone will detected
by computer because its software is still working...so ,
the problem of your N70 im sure is the second one ,
corrupted software....your phone needs to reprogram,and
need to go to a nokia care center to fix you problem...
i hope ,i will help you ,thanks for trusting fixya...

Dear please reinstall its software. Problem will be quickly solved. Thanks

cost would be very less dont worry try reloading thhe software

please try to check / use the display adapter device (like nvidia if this is installed in your PC) settings control panel instead of the System->Preference->Screen Resolution option then you can obtain the desired graphics display. best regards

i think it is an internal problem and it usually appears if the cabinet touches your screen.So go to nokia shop and try to solve it

go ahead the workshop and figure out the problem ... this is common problem nowadays since not every n85 is good in quality so i think u was the unlucky who bought the low quality n-85 key un-sensitive is a very common problem with n-85 ..but not so serious..the black screen i think is ur ram overload or something... so the only way u can solve is go ahead the workshop
=D

sir if ur display is ok then just clean the pcb and display connector with pcb cleaner or molycote it will work its been tested 

upgrading firmware on your own is not safe, you should take it to a repair/service center and they will flash it for you. if this problem is not solved after flashing, then the phone hardware should be looked at

You need to chance the strip in side the mobile. or else we need to change the display.