How to turn off the automatic networking of the mobile phone so that all the functions in the mobile phone that need to be connected to the Internet cannot be used?

Steps to turn off the automatic networking function of the mobile phone:

1. Taking the MIUI system as an example, open the Security Center application in the mobile phone system, and click to open the Network Assistant module in the Security Center application.

2. After opening the Network Assistant application, click to select the "Network Control" option.

3. In the networking control page, click the "X" button at the top of the page to turn off all application networking functions on the phone.