The rapid use of traffic may be due to the mobile phone's message push, background application, automatic software update, account synchronization, etc., which leads to the mobile phone running traffic. I suggest you: 1, go to phone settings-notification, and turn off unnecessary software notifications; 2. Enter the mobile phone settings, which will be turned off by using the cellular mobile data switch; 3. Enter the mobile phone settings-General, refresh and close the background application; 4. Enter the mobile phone settings-cellular mobile network and turn off the WLAN assistant; 5. You can turn off the cellular data switch when you don't need to surf the Internet.