Solve the problem that the mobile phone APP cannot be properly connected

Almost all domestic Android mobile phones now come with a network firewall function that allows you to define whether specific apps can use data traffic or Wi-Fi network permissions. However, due to the different definitions of the function of different brands, it is easy to cause some minor flaws.

Taking OPPO R9s as an example, when we install a third-party app, the system will automatically assign network access rights to these apps. The problem is that the system's smart-assigned permissions are sometimes unreasonable, so it's easy to prevent some apps from producing data traffic.

Take the UC browser as an example. After installing this app, it is automatically banned from using data traffic (Figure 1). If you run it outdoors (without Wi-Fi) at this time, you will naturally be unable to network. Similar problems also appear on many APPs. When everyone’s mobile phone encounters certain apps that cannot use data traffic or Wi-Fi to access the Internet, check the settings of the network firewall (Figure 2). Perhaps this will solve the problem. It.

hint

Many Android phones come pre-installed with apps that cannot be uninstalled but are not yet practical. If the system does not provide application freeze functionality, we can prohibit them from using data traffic and Wi-Fi through networked firewalls, which will prevent them from using their own applications. The problem.