Keyboard stops responding ps4?

I have played with mouse and keyboard on PS4 Fortnite every time then have screwed the keyboard on the keys and reinvented new keys but now nothing reacts anymore, even though the LEDs on the keyboard light up. It was not even lately when I screwed it up, but my father did it again and again. Now it does not work again, does anyone know why? These 2 small parts I do not know how to turn the dranmachen so what is the reason it is due to it

Buy new keyboard or replace old ones with others. Otherwise, the problem can't be mastered and the repair itself is not worth the effort.

These 2 small parts I do not know how to turn the dranmachen so what is the reason it is due to it

It's probably quite possible. These parts ensure that the "contact mat" and the board are in contact with each other.

The order (for this keyboard) is as follows:

The board.
The "contact mat" (the thing that consists of 3 or 4 flaky layers).
The plastic strip.
The metal strip.
The 3 screws.

Buying a new one is too much effort

Had to take other screws. Somehow, it was still nich.Die Leds light, anyway, nothing happens when I type. It is recognized by the Ps4 but when typing nothing happens

Seems like there's some problem with the contacts between the contact mat and the board…

Possibly. Could you still check if there's no slippage or just wrong on it, but otherwise it would probably actually be best to take a new one.