2. Because this function module needs to be activated, it needs to be downloaded to the internal test version file first, so that you can see this option.
3. For example, you can download the installation file of the recently released beta version of an app, and then you can see the option of description file and management in the corresponding position.
4. After that, you can find this option and find the corresponding "Settings" option on the Apple phone.
after 5, just select the corresponding general option.
6. in the general options interface, you can see the corresponding description files and management modules.
7. Click this file to enter the next interface, then you can authorize it, and then you can experience the application of the internal test version of the iOS system.