Install a security software (such as mobile phone housekeeper). ). Take the mobile phone housekeeper as an example. Open the mobile phone housekeeper, click one button in the main interface to automatically detect the virus in the mobile phone, and click one button to clear and delete. If you are prompted that you can't delete, try to get ROOT permission and try again.
If you can't solve the problem, please try to download the brush package and tools from the mobile phone brand official website to completely restore the mobile phone. If you can't handle it yourself, please send it to the official after-sales service of the mobile phone brand.