If you are still using Sprint Samsung Galaxy S3 and you want to upgrade it to latest android KITKAT version. Then you have good news the sprint Samsung galaxy S3 Android KitKat update available and waiting for you to download it.
After getting this, update your mobile get new features like batter, memory management which means better performance.
How to Update the Device? First, check your mobile battery it should be charge at last 50% and wife enables then goes to the Setting >More>System Update> Update Samsung Software > Check Now