Change Languages is a free Android app developed by JKDevAndroid under the category of Utilities & Tools. The application allows you to activate all the supported Samsung languages and keyboard inputs without any intervention from you. However, after the 4.2 new Jelly Bean update, the protection level definition of CHANGE_CONFIGURATION has been changed, and you have to allow the CHANGE_CONFIGURATION manually. This can be done by using the adb command of Android development tools, which can be downloaded and granted permission manually by connecting your smartphone to your laptop with a cable and running the command.

If you have SuperUser privilege on your device, Change Languages can get the permission automatically. From Android 7 Nougat onwards, the application will request for a new permission that is required to write system settings. However, some device variants (US, Chinese) remove all unused languages, and there is not much that can be done in this case. The app provides a straightforward solution for activating Samsung languages and keyboard inputs, and the developer offers support for any queries or issues that may arise.