Install Android 5.1 Lollipop ROM on Galaxy S3 GT-I9300. Early adopters have reported very good feedback with the ROM being snappy, smooth and with great battery. At least, better battery life than previous ROMs. OmniROM aims to bring a slimmed down experience of stock Android 5.1 firmware.
Galaxy S3 Toolkit: Has drivers, root, recovery and other useful options. Provides you choice in recovery and root manager app: either of SuperSU and Superuser. Tool 1: Root a Samsung Galaxy S3 i9300 using CF-Auto-Root. Downloads: CF-Auto-Root for Galaxy S3 i9300. Installation Instructions:
Samsung Galaxy S 3 (International) Firmware Download GT-I9300 Free Download ⭐ Official and fast update ⭐ Max speed and free download ⭐ Best Samsung Galaxy website.
Samsung Galaxy S3 Neo Firmware Download GT-I9300I Free Download ⭐ Official and fast update ⭐ Max speed and free download ⭐ Best Samsung Galaxy website.
Update : Tap to check for any available updates for the Galaxy Gear. If available, the software will be downloaded and copied to the Galaxy Gear. Auto update: Check for updates periodically. Wi-Fi only: If an update is available, only download the software if the mobile device has an active wireless connection.