In Apple's mobile phone, you can enter the settings page to find the general options, enter the jump, click the installation description file, check the option to allow trusted software, and return to the page after setting.

1. First, open the settings page and find the "General" settings in the page.

2. In the settings list of general options, click the "Profile" option.

3. Enter the page, click Application Installation, and click the "Trust" option in the pop-up dialog box.

4. Finally, click OK and return to the page to view file and device management options.