Prevent unintended operation by setting restriction on the edge of your Galaxy.
#GoodLockFriends

The following permissions are required for the app service. For optional permissions, the default functionality of the service is turned on, but not allowed.

[Essential Access Rights]
- Storage: Save image files to the device
[Optional Access Rights]
- Phone: Observation of device Status for restoration of touch Area after call

If your system software version is lower than Android 6.0, please update the software to configure App permissions.
Previously allowed permissions can be reset on Apps menu in device settings after software update.