This app helps you to access Android Phone Info/Testing settings quickly. To access these settings, you will need to dial *#*#4636#*#* normally. When you click the icon for this app, it instantly launches, saving you time. If you're in a hurry, with just one click, it will open the app and you can use it right away compared to dialing all the numbers.

You can utilize the Android settings to force LTE as an example. These options are built into Android and can be used to force 3G or LTE/4G when necessary (obviously, this will depend on if the coverage is available).