What if the mobile phone always pops up to clean up the advertisement?

The advertisements that pop up during the use of mobile phones mainly come from third-party applications installed in mobile phones. Call up the background task page of the mobile phone to see if there are any applications that pop up advertisements. If there are money-making applications such as cleaning, WIFI and walking, I suggest you uninstall the corresponding software and use observation (you can go to Settings-Applications and Permissions-Application Management to see if such applications are installed).