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[Adam67]

The TV, when I turn it on, starts to turn off and on automatically. I can't even enter the settings. I disconnected from the electricity. Nothing has changed. Somebody? Something? Please 

[Obsydian]

I have a 95A, check you HDMI are you using it via a soundbar?

Usually a power off, check unplug, replug, power on, have a cup of tea and then see if its ok.

[JAMES4578]

By any chance do you have  Ambient Light Detection switched on in Eco settings. Just checking that you have the  latest firmware, can be checked on the support site.   A very recent update 1504.0 , if you are able ti update via USB.    https://www.samsung.com/uk/support/model/QE55S95BATXXU/  Anynet+ HDMI control can also cause issues. If this is switched on  toggle it off in Settings-External Device Manager.    

Just check that cables/connections are secure, if using surge protector check that is ok. Could try disconnecting external Devices.   Holding Power Button in for around 5 seconds until Tv reboots or unplugging from mains for  a longer period (give it around 10 minutes) can sometimes fix issues , A factory reset is another idea.

However if troubleshooting provides no solution possibly there is an issue with capacitor or main Board.  Would need to get in touch with Samsung Support for options.

[Adam67]

Thank you. Checked nie działa

[Adam67]

It was a problem with the screen, it was replaced with a new one. Now everything is ok. And the link to the new software I used. Thanks