When we download some software from the browser, but it can't be installed, it shows that it can't be installed successfully. What should we do if we ban the installation of software from unknown sources? On the contrary, if the mobile phone keeps downloading this from unknown sources. For software with security risks, we have to set up a ban on installing software with known sources, so as to achieve the effect of downloading, installing and using it.
Here's how to set it: First, let's turn on this setting of the mobile phone. Select more security settings in Security and Privacy. Then we can see the unknown source application download in more settings, open the unknown source, and the button behind the application download will appear a security prompt for us to choose OK. Then we click Install Unknown Application. After opening, change the software that you want to download unknown applications, such as the browser's disallowed to allowed.