How to flash the official Android 4.3 Jelly Bean XXUGMK6 firmware on Samsung Galaxy S3 I9300 device
First of all, download the firmware file (Android 4.3 Jelly Bean XXUGMK6) update from here and save it on the PC.Now, unzip the downloaded file on desktop.Next download ODIN application, unzip it and install the same on the PC.Download and install the suitable Galaxy S3 drivers on your PC, for that you can use the Samsung KIES application that will install the drivers automatically.Now, open the ODIN app on your PC and power off the S3 device.Reboot the device into Download Mode. To do this on Samsung Galaxy S3 device the download mode is accessible by pressing the Power, Home and Volume Down buttons simultaneous.With the Galaxy S3 device booted on download mode and the ODIN application running on the computer, by using the USB cable connect the device to the PC.Now, the ODIN app should recognize the smartphone and if everything works well the ODIN app will say “added” message and the ID:COM section must be colored yellow or blue.If not then you need to close the ODIN application, disconnect the device from PC and reinstall the USB drivers for S3 once again and then repeat the tutorial from the beginning.Now, from ODIN application click on “PDA” button.Browse and pick the Android 4.3 Jelly Bean firmware file.From ODIN application you need to press on START button.Wait until the installing operation is done and the ODIN application will display the “pass” message and the ID:COM section will turn green.Disconnect the device from PC by safely unplug the USB cable.Reboot the device.
Troubleshooting:
If The S3 device might get stuck you need to:Boot the device into recovery modeFrom the recovery mode select “Wipe data factory reset” and then “Wipe cache partition”.Return into main menu of Recovery Mode and select “Reboot System now”.If the ODIN might get stuck then you need to:Close the ODIN applicationDisconnect the device from the PC by removing the USB cord.Reinstall the USB drivers once again.Force restarts the SGS3 device.Repeat the installation process from starting.That’s all you’ve successfully learned how manually install the new Android 4.3 Jelly Bean update XXUGMK6 OS on Samsung Galaxy S3 device.For any other problems you can use our comment section from below