This app will help you access hidden network settings for forcing band selection on Samsung phones. Some example use cases may include but not limited to:
- Discovering new 4G LTE / 5G NR bands in your area
- Avoiding congested bands by manually selecting a well-known uncongested band
- Crowd sourcing contributions (e.g. CellMapper)
- Curiosity

There is also an option to access "More Network Settings" which contains dual SIMs settings for VoLTE APN Wi-Fi calling etc when supported by your device and carrier.

Tested on Samsung devices running One UI 2.0 and up. Compatibility verified by the community on Galaxy S8 S9 S10 S20 Note8 Note9 Note10+ A30 A50 J6...