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flashing tv - 55SK8500PLA

Longstar
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Longstar Newbie

Longstar

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Hello,

I have LG LCD TV.

It is around 5-6 years old.

It start flashing few days ago. It is not too much, but is visible specialy during light scenes or white screen. It is done regulary every approx. 2 seconds. It looks similar like when you change contrast on screen.

I already tried.

Plug out tv for few minutes

I reset also all settings in the tv to original one.

Question is. How can I reset web OS to previous version? I read some articles that last version of SW can do that.

Thank you very much

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