2. Click Login-Fund Trading above, enter the trading account number and password, and click Login;

3. After logging in, click Personal Assets on the left, and you can see the reserved mobile phone number in the upper left corner. Move the mouse to the mobile phone number, and click Modify to display it;

4. Enter the security center, click Change Binding Mobile Phone in Mobile Phone Binding, enter the check code (sent to the original mobile phone), click Next, enter the new mobile phone number and the received check code, and click OK.