Samsung Galaxy S3 GT-I9300 Android 4.3 Official Firmware Download Link
Step 5: Start the Installation Process
Overview
, contacts, and gallery, were updated to match the Galaxy S4's theme. New Camera Features: "Sound and Shot" Samsung Galaxy S3 GT-I9300 Android 4
SamMobile: One of the oldest and most trusted sources for original Samsung firmware. Samsung Galaxy S3 GT-I9300 Android 4