Click the button at the bottom of Odin. The progress bar will fill up as the system partitions are written over to your device.
The Samsung Galaxy S3 GT-I9300 is a popular smartphone that was released in 2012. At the time of its release, it was one of the most powerful and feature-rich devices on the market. However, as with any smartphone, it's essential to keep the device up-to-date with the latest software updates to ensure optimal performance, security, and functionality.
Browse the Samsung section of FirmwareFile and locate the GT-I9300 model list. Step-by-Step Installation Guide Using Odin
Before downloading, verify your device properties match these exact parameters to prevent bricking your phone: Specification Samsung Galaxy S3 Model Number GT-I9300 (International GSM) OS Version Android 4.3 (Jelly Bean) Build Date Late 2013 / 2014 Flashing Tool Odin3 (Version 3.09 or 3.10 recommended) Trusted Firmware Download Sources Click the button at the bottom of Odin
Wait until the progress bar completes. Odin will display a green message, and your phone will reboot automatically. Troubleshooting Common Issues
, the Android 4.3 Jelly Bean update remains the final and most stable official software release. This update provides essential modern features like , TRIM support for improved speed, and updated core UI elements that mirror the Galaxy S4 experience. Official Firmware Download Links
Samsung Odin3: How to use Odin to Install Stock Firmware/ROM At the time of its release, it was
For the most reliable official firmware, reputable third-party databases are typically used as official direct links from Samsung are no longer active for this legacy device:
Right-click on the Odin executable file ( Odin3.exe ) and choose . Connect your Galaxy S3 to the PC using the USB cable.
Enables compatibility with the original Samsung Galaxy Gear smartwatch. Performance (TRIM Support): pull the battery out
Select and "wipe cache partition" using volume keys and power to confirm 1.2.1. Reboot the system.
If your device hangs on the Samsung logo for more than 10 minutes after flashing, pull the battery out, reinsert it, and hold Volume Up + Home + Power to enter Recovery Mode. Select Wipe Data/Factory Reset , then reboot. This clears conflicting cache data from your previous Android version.
Ensure your phone is strictly the GT-I9300 variant. Never flash GT-I9300 firmware onto other versions (like the AT&T SGH-I747 or Verizon SCH-I535), as this will damage your device. Go to Settings > About Device to verify.
Samsung Galaxy S3 (GT-I9300) Android 4.3 Jelly Bean Official Firmware Download Guide