How to apply for OPPO mobile phone maintenance master?

On the one hand, I am the person in charge of the product. I introduced myself first, and then asked two questions according to the answers, and learned what I felt bad about the product user group and product management process. Then I asked the reason why I wanted to change my job. I wanted to get more development and asked about my last experience, which was 1 many hours in total. In the middle, I also asked about the relationship with the introducer, and the answer was classmates. Then I go back and wait for the notice. 1 hour didn't come out, and received the notice from Hr on both sides. However, the two sides only talked for more than ten minutes and it was over. If you are not satisfied, go back and wait for the notice.