2. Click "?" It's on the cell phone number in the personal center. Then check the prompt pop-up window to know that the mobile phone numbers bound by Beijing Health Bao and Alipay are always the same. You can change the mobile phone number by re-verifying the login after changing the Alipay mobile phone number.
3. Click "Settings" in the Personal Center.
4. Click "Security Settings" in the settings interface, and then click "Mobile Number" in the security settings interface.
5. Click "Change Mobile Number" in the mobile phone number interface, and then follow the prompts to change the mobile phone number.