1. On the main page of postal mobile banking, find and click My in the lower right corner.

2. In My Page, find the settings at the top of the page, and then click Enter.

3. After entering a new page, find the setting unbinding option and click Enter.

4. In the device unbinding page, select the device type to unbind, and then click Enter.

5. After entering the unbinding page, enter the SMS verification code obtained by the mobile phone, and click Unbinding to complete the unbinding operation of the postal mobile banking.