345G Switcher - 4G LTE Only is an Android app developed by AgmcDev. It is a free utility and tools app that allows users to open hidden system settings and switch their network type to 3G, 4G, or 5G only.

With this app, users can easily switch their network type to their preferred option, whether it's 3G, 4G, or 5G. It also provides the ability to detect the type of network currently connected. Additionally, the app allows users to open mobile networks settings directly from within the app.

To use the app, simply follow the instructions provided by pressing the "?" (Help) button inside the app. However, it is important to note that if your mobile carrier does not support Voice over LTE (VoLTE) when selecting "LTE only", incoming and outgoing calls may be blocked. Therefore, it is recommended to return to the default settings after you are done using the app.

Overall, 345G Switcher - 4G LTE Only is a useful app for users who want to have more control over their network type and access hidden system settings.