The solution for untrusted enterprise developers can be realized by the following steps (taking Apple mobile phone as an example):

1. On the desktop of Apple's mobile phone, click the open settings icon, and then select the general option to enter.

2. Enter the general list menu and click the equipment management option to enter.

3. As shown in the following figure: Click the enterprise application option to continue the next operation.

4. Enter the enterprise application interface and click the trust option to enter.

5. Finally, in the pop-up dialog box, click the Trust button.