1, check the suspicious software installed on the mobile phone and the newly installed software recently, especially the three-way cleaning acceleration, three-way optimization, three-way antivirus, three-way housekeeper, three-way file management, WIFI, walking to make money, three-way weather and other software.
(2) go to settings > applications and services > application management, find the suspicious application and click "uninstall", or continue to click "stop and uninstall" to finish the uninstall. After entering the mobile phone desktop through safe mode, go to mobile phone settings > applications and services > application management, find the suspicious application and click Uninstall, or click Stop and Uninstall to finish the uninstall.
After uninstalling, restart the device to exit "Safe Mode".