1. Enter the Tianfu Tongban main page and click My in the lower right corner;
2. Then focus on the gear settings button in the upper right corner to enter;
3. Pull down to find the option to modify the mobile phone number;
4. On the page to modify the mobile phone number, select a corresponding verification Method;
5. Enter your mobile phone number, enter the verification code you obtained, and click Next;
6. After verification, enter your new mobile phone number and verification code, and confirm the modification.
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