c702 very wierd..help needed~

hi guys..its me again..and this time..i am having a problem with my c702..
it was sent to me by my sister and when i got it..

i had this problem that when i activate the camera by sliding the camera cover or accesing it on the main menu.. the screen goes black as if its turned off
but when i tried it again while media player is on..it still did the same thing(going black) but when i tried to press the end call button to close the camera application..the sound from the media player is back..(while still having a black screen..no lights at all)
i can tell that this isnt a hardware problem coz i tried the camera on service test and it is working properly there..

oh..and please take note that i can take pictures using the camera..ist just that there is no display when im in camera mode.. :a004

tried updating with SEUS but still no luck..

please share ur toughts and ideas regarding this matter...any help will be appreciated..

thanks in advance guys..:a011

change camera and display drivers....
if still no gain then Flash it......

hi tanjot thanks for ur idea..but i have already tried that..

there might be some loose connection near the camera cover (might be display strip), take a look at it and see the possibilities.