HOW TO UPDATE SAMSUNG GALAXY S3 USING KIES

Update Galaxy S3 using Kies
Use this step-by-step tutorial to update Samsung Galaxy S3 using Samsung Kies.
Kies is the official device manager tool by Samsung for its Smartphones and tablets devices. I always suggest Kies for Android beginners as it is very user-friendly to easily update your phone to the latest firmware update. It also helps you transfer media files to your device or take backup of your important data.
These are step-by-step instructions to install the latest firmware updates for Galaxy S3 using Kies:
Step 1: Download the latest version of Samsung Kies for PC or Mac from here.

Step 2: Install Kies on your PC or Mac.
Step 3: Launch Kies application.
Step 4: Connect your phone to PC via the USB data cable.

Step 5: Now if the firmware update is available for Galaxy S3, you’ll then see an update notification under the ‘Basic Information’ tab.
Step 6: When kies prompt for update notification for your device then click Firmware Upgrade and you should get a popup notification and choose to update.
Further follow the on-screen instructions by Kies to continue with the update. Note that update process using Kies may take longer totally depending on your PC and internet connection.