Problem with Sony Bravia KDL-43w808c

[Pruneaca]

I have this Tv since  November 2016 ahd my problem is : When i watch the TV in black images some times apears near or in the balack images something like a blue colour cloud  or on a peisage on mountins far away or some forest black this colour blue is near or above black colour ! Sometimes apear somtimes  no ! The Romanian Sony service change my tv motherboard tv but the problems are the same  !Please give me a sugestion or help me ti o resolve that!With Respect !Daniel  P.Bucharest Romania 

[Anonymous]

Hi there,

Have you updated to the latest firmware?

Best wishes,

M

[Pruneaca]

Yes i do but the problem still persist !Thanks Sir !The Romanian service for Sony it s very hiden with clients and told me ..this is  not a problem!!!!