How does Dangdang untie the mobile phone number

You can log in to Dangdang to unbind the mobile phone number, and unbind the mobile phone number through the settings in the security center.

The specific steps of unbinding the mobile phone number are as follows:

1. Open Dangdang first, then log in, and then click My Dangdang (or open the website directly after logging in:/).

2. Then drop down, find the security center in the menu on the right, and then bind or modify the binding.