5G4G Force LTE Only is an application that can modify the network configuration of your smartphone to force the use of LTE only. It allows you to open the hidden settings of your smartphone. It will open the settings in which you can select the network configuration that you want. 

It is a good idea to have this app installed on your smartphone, especially if you want to make sure you're always making use of a more stable network service. 

The settings will be displayed on the screen.