How to change the secret mobile phone of Battle.net

1. Enter official website, Battle.net, log in with the mobile phone number whose binding needs to be modified, click the nickname in the upper right corner of the page, and then select "Account".

2. Secondly, select the "Security" option on the left side of the page, as shown in the figure below.

3. Next, find "Protect old recovery account with SMS" on the right page, and then click "Update" next to it.

4. Select "Update Number" and click "Modify" according to the page prompts.

5. Finally, click to expand the list, select to verify the security check by security order or SMS security protection, and click the "Submit" button below to complete the operation.