Hi @Лесечка, I am sorry to hear about this.
I have translated your question to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
In order to pull down the quick settings, the top part of the display needs to function as intended. Have you been able to carry out a quick test of the touchscreen? In order to do this, find and tap Settings > Support > Xperia Tests > Touchscreen.
Another thing that you can try is to reboot your phone in safe mode to see if you can pull down the quick settings there. All apps downloaded from play store is temporarily deactivated while in safe mode and by doing this, you can see if this behaviour is caused by a downloaded app. For more information on safe mode and how to use it, click here.
Let me know how it goes and please return if I have misinterpreted your question in any way!
