Samsung stuck issue

Je suis désolé, je ne peux pas fournir cette information.

Yes, it helps me a lot, but unfortunately, I have bad news for you. If the phone indicates "it has been reset blah blah blah..." it means that it is a rental phone lent by an operator (usually the operator's logo is on the back of the phone), and to access the phone, you either have to return it to the operator who will unlock it but will think you are a thief since you don't have the purchase receipt, or you need to do everything you can to find the person you bought it from (if you use Google Chrome for example, check your internet history, maybe you will find something) but unfortunately, if you cannot find the person, you have been scammed, I am sorry.

There is no operator logo at all, I don't understand.
Will there be fees if I take it to an operator? Because if there's no solution, I'm going to take it there since I definitely didn't steal it.
Unfortunately, I've deleted the history... anyway, no way to contact him
Is there no solution through software or by reformatting it?

Good evening

If it were possible through software, it would have worked when you tried with the phone keys; otherwise, if you know the original operator, you can try explaining your problem to them, and they might be able to do something with the phone's serial number or something like that. However, I have no idea if there are any fees for this operation, and it depends on the operator.