From the reply, we can at least see that he doesn't like your master's major, and there are already students who like him who intend to apply for him. Unless none of his favorite students have passed the initial exam, and you have a good initial exam, there is still great hope, otherwise there is little hope. After all, the competition for the exam is quite fierce. I suggest you contact other tutors in our school and doctoral tutors in other schools where you want to apply for a major. It is very important to get the approval of the doctoral supervisor before the exam, otherwise even if you pass the initial exam, the second interview may be brushed off. Good luck!