Hi @Almoumin, welcome to our forum!
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.
I'm not quite sure that I understand exactly what you want to do, would it be possible for you to elaborate a bit?
The fingerprint is built in to the power button so if you want to turn the screen off, just press and power button.
