Bad image after software update on Lg lb670v


Novice Member
After the last update (5.00.15) on my Lg 55lb670v there was an instant change of the image. It looked like the sharpness was way to high and the color settings way of in dark scenes. Before the update I have spent hours of tuning the image to my satisfaction, and I acctually had full sharpness set. I have tried to reset all settings and use my old again, it made some differense but it does not look nearly as good as before. I have also tried to change hdmi port...
There are lots of artefacts in the image, and on dark scenes there are black dots on white areas. Same result with bluray, netflix and my tv box (digital tv channels with 1080i)

I use a panasonic dmp-bdt700 bluray player for film and netflix.

Hope somebody can help me getting my tv experience back!
Ps sorry for any bad spelling.
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