1. First, open the mobile banking, enter your personal user name and password, and log in to the mobile banking.

2. Secondly, find the "loan" option on the main page and click Enter.

3. Then find the option of "interest rate conversion" on the loan page and click Enter.

4. In the pop-up page, select the option of "floating interest rate conversion" and click the "Confirm" button.

5. Secondly, according to the prompt, enter the loan amount, loan term and other information, and submit the application.

6. Finally, after the system is approved, the operation of changing the fixed interest rate into a floating interest rate can be completed.