Go to settings of your Samsung Galaxy by selecting the "Settings" icon, which is located in the main menu of the device. The list is available to change the settings scroll down the screen to select the section "About device", which presents information about your machine and the latest system updates.
In the screen that appears, select "system Update", clicking on which the phone will automatically start searching for the right updates. Before executing this procedure, make sure that you have activated a permanent connection to the Internet using Wi-Fi or 3G (4G).
The smartphone will automatically contact the server for updates and if there are new versions of the software installs the necessary files. When you receive a notification about the beginning of the installation does not perform with your phone no operations until, until the procedure is completed. After the procedure you will receive a notification on the device screen.
Update Android software can also be done with a computer. Install the Samsung PC Kies, download it from the official Samsung website. After installation, connect your phone to the computer using the USB cable that came in one package with the device. When you select a connection method select "Media Mode" on the phone screen.
Run PC Kies in the system. After search is finished, your program will automatically check for new versions of the software for your device. If updates are available you will see a notification after closing which will start downloading and installing a new version of Android. Do not make over the phone no action until the end of the upgrade procedure.
Try to periodically update the software when you receive a notification about the new version of Android. The updated firmware for phone includes fixes that can improve the system and add some new features to work with the device.