How to change the Eglish menu to Russian menu?If you can't find the Russian language in Settings -> Language and Keyboard -> Language, then in order to install the desired language pack you will need to root your device. By doing this you will lose your warranty, and there is no way to reverse the process. Also, this is a dangerous process, because you could damage your device, and you should't try it unless you know what to do. Use Google in order to find more information.
Galaxy S4 Toolkit is a free program that allows you to back up and restore your Samsung Galaxy S4 Android device. The application also allows you to flash your phone, to convert kernel.bin.md5 in .tar.md5 Odin, to install the USB Drivers, to change the GUI color, to wipe cache/data and view device info.