1. Enter Apple official website, find technical support on the right side of the homepage navigation, click, and enter beta in the technical support search box, as shown in the following figure:
2. On the searched page, select how to install or uninstall iOS Beta software and click it, as shown in the following figure:
3. On the pop-up page, select Keep iOS Beta up to date, and click, as shown in the following figure:
As a member of Apple's beta software program, you need to register an iOS device first. If you have registered, you should ignore the following three steps, as shown in the figure:
5. Click Register to enter the verification ID page and enter the account information, as shown in the following figure:
6. Enter the verification information received by the mobile phone, and then enter the page, as shown in the figure:
7. After the verification is passed, there will be a user agreement. Click Accept, then enter the beta guide page and select iOS, as shown in the following figure:
8. Continue to click "Register Your iOS Device" under the heading, as shown in the following figure:
9. Before installation, the system will prompt the user to make necessary information backup, as shown in the following figure:
10. After the backup is completed, click the blue link under the heading of downloading familiar files to download the configuration file, as shown in the following figure:
1 1, then go back to the phone settings, find the software update and install any available beta software, and click Download and Install, as shown in the following figure: