How to change the network mode on my Samsung Galaxy S9

Click each step to see the action. You can also click the picture or use the arrow keys.

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You can select a network mode for your Samsung Galaxy S9. This setting will influence the data speeds received over the mobile network.
1. Swipe up or down to view Apps.
2. Touch Settings.
3. Touch Connections.
4. Touch Mobile networks.
5. Touch Network mode.
6. Touch the desired option, e.g., LTE/WCDMA/GSM (auto connect).
7. The network mode has been changed.