Hey @Ahmetor ,
that is odd. However, if the issue remains after a Factory Reset the best thing to do is having the phone inspected by one of our engineers. You can find your nearest one by following this link: https://www.samsung.com/uk/support/service-centre/
Thanks for your soon reply. If you purchased the phone in the EU this will be covered in any of the country members of this as the warranty is region-based. Are you travelling to any country in the EU soon or do you have any relatives or friends there to sent this to them?
In this case, I would suggest contacting our colleagues in the country where you purchased the phone to provide you with the next steps. Take a look at this link to find all their contact details: https://www.samsung.com/uk/function/ipredirection/ipredirectionLocalList/
Have a nice evening.