The IMS Settings Opener app is designed specifically for Samsung Galaxy smartphones and allows you to access and modify IMS settings on your device.

Please note that root access is required, meaning your phone must be rooted for the app to function properly.

With this app, you can enable the Voice over LTE (VoLTE) feature on your Samsung Galaxy smartphone. This is particularly useful if you are using your device with carriers such as Jio in India or LG U+ in South Korea, which do not have 2G or 3G networks.

After launching the app, you will need to follow a series of steps. These include resetting the settings to default, enabling the IMS Service Switch, turning on the MMTEL Switch, enabling all five items under MMTEL (VoLTE, VoLTE-Video), configuring IMS profiles, setting P-CSCF preferences, and exiting the app.

Once these steps are completed and you wait for approximately 30 seconds, you should see the VoLTE and VoLTE icons displayed in the status bar of your device.

Please note the following points:

* The app is only compatible with Samsung Galaxy smartphones running Android 5.0 Lollipop or higher.
* Some devices may require an OTP key when entering the IMS Service Switch, and enabling VoLTE may not be possible on these devices.
* The app may not work on devices that do not have an IMS Settings app pre-installed.