The sensor works badly

[Waiper]

Translation via Google Translate:

The sensor itself starts to press in different parts of the screen. What to do I do not know can it be flashing and maybe the phone itself.

Сенсор сам по себе начинает нажимать в разные части экрана.что делать не знаю может это прошива а может и сам телефон. 

[Jonas]

Hi @Waiper, welcome to our forum and I'm sorry to hear about this.

Your question has been translated to English as this is an English only forum. Please try and keep your replies in English.

Do I understand correctly that when you are using your device, the touch screen is acting on it's own and starts tapping on icons even though your finger(s) is not near that area of the screen? If that is correct, I would recommend that you start with checking so you haven't enabled the glove mode in the device.

You can find this setting in Settings > Display > Glove mode.

If you have a screen protector on your device, you can also try removing this and see if there has been any change.

Let me know how it goes!