This app allows you to open hidden settings to switch network type to 3G/4G/5G only. Features: - Switch network type to 3G/4G/5G only. - Detect type of network connected. - SIM card information. How to use: Follow instructions for use by pressing "?" (Help) button inside app. Warning: If your mobile carrier does not support VoLTE when selecting "LTE only" incoming and outgoing calls will be blocked, so remember to return the default settings after you are done.