Not for launching the menu, but root is required to apply any permanent changes (e.g., band locking across reboots).
In the past, enabling Voice over LTE (VoLTE) on older Sprint devices sometimes required toggling settings deep within this menu before the carrier network would provision the feature. hidden menu call 1.7 apk lg ls992
for an app like Activity Launcher to target a certain menu, such as APN or network band selection? [DIALER CODES & BUTTON COMBINATIONS] LG G Stylo Not for launching the menu, but root is