How to change the network mode on my Apple iPhone 6S
You can select a network mode for your Apple iPhone 6S. This setting will influence the data speeds received over the mobile network.
1. Touch Settings.
2. Touch Mobile.
3. Touch Mobile Data Options.
4. Touch Voice & Data.
5. Touch the desired option (e.g. 4G).
6. Touch the < icon.
7. The network mode has been changed.