If you plan to transfer files using the mutual transfer APP, you can refer to the following methods:

1. Open the "Mutual Transfer" APP, select "Transfer File", select "I want to send" and wait for the other party to join;

2. Another device also turns on mutual transmission, select "Transfer file" and click "I want to receive";

3. After searching for the device, click the device to connect, and the data can be transmitted after the connection is successful.

If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.