How to set up traffic offline cache on iPhone 6?

Whether you are using Baofeng Video or another application, the basic setting method is to go to the application settings and set up 3G/4G offline cache

1. The first step is to turn it on. Enter the mobile desktop.

2. Enter the desktop and click "Settings" on the desktop.

3. After clicking to open the settings window, you can find "Airplane Mode" in the first option.

4. After finding it, click the white button behind it.

5. After clicking the white button, you will find that the button turns green.

6. In this way, the offline mode of the mobile phone is successfully turned on.