Why can't Huawei's mobile phone download Weather Link?

Huawei's mobile phone can't download Weather Link because it turns off the external source application download, so just turn it on.

It is divided into three steps, and the specific steps are as follows:

1. Enter the setting security, open the phone setting icon, and click the security option.

2. Open the external source application, enter the more security settings page, download the external source application and click OK.

3. turn on the application that is allowed to be installed, click on the application that is installed from an external source, and select an app to turn on the application that is allowed to be installed.