To upgrade a Samsung mobile device's firmware, go to Settings on the mobile phone, and press the Upgrade Device Software link. Another method is to use the voice command feature on the phone and ask the device to check for firmware upgrade.
Download the firmware to a computer by visiting Samsung.com and clicking on the Manuals and Downloads link located under the Owners and Support tab at the top of the main page. Enter a phone model number in the search bar. Scroll down to the Download link, and click it to begin downloading the firmware to the computer.
Connect the device with a micro USB cord to the computer, and install the firmware. You can download software to your desktop that provides notifications for firmware updates. Many Android devices that have the Android operating system 4.1 version or higher automatically update the user when new firmware for the device becomes available.
If you have an older version of the Android operating system, set up the phone to check if new firmware is ready for download on a daily basis by changing the user settings. Several retail locations, including Best Buy, can also assist with upgrading the firmware on a Samsung mobile device.