Install DUEMA1 Android 4.1.2 firmware on Galaxy S 3 I9300T

I9300TDUEMA1 Android 4.1.2 Jelly Bean firmware update for Samsung Galaxy S 3 I9300T for users in Thailand is available for a download. The latest firmware update includes minor bugs fixes. We will be going through the guide to install DUEMA1 Android 4.1.2 on Galaxy S 3 I9300T.

Since, this is an official firmware update by Samsung for Galaxy S3 I9300 , you will lose root. A tutorial on rooting will be covered later.

Firmware details:

Version: 4.1.2
Date: 2013-01-28

The guide mentioned below is only for Galaxy S 3 I9300T and is not compatible with any other device. To know the model number of your device go to Settings >> About Phone

We cannot be held liable of any damage done to your device while following the below mentioned procedure.

Galaxy S3. 1

Install official DUEMA1 Android 4.1.2 firmware on Galaxy S 3 I9300T

Take a complete backup of data,apps and settings as the procedure may wipe your data.

Make sure that the battery of device has a minimum charge of 60%.

Enable “USB debugging” on your device by going to Settings >> Developer options >> Enable USB debugging.

Download Kies Software to install driver.

Download DUEMA1 Android 4.1.2 firmware ( update on Galaxy S 3 I9300T and Odin (

Extract the Firmware file which you have downloaded in above step. You will get “.tar” file along with other files.

Extract Odin to get “Odin3 v3.07.exe” file.

Switch off device.

Boot device into download mode. Press and hold Volume Down, Home, Power till device turns on and then press Volume Up to enter download mode.

Connect device to computer using USB cable. Odin will detect your device and ID:COM will turn yellow and a message appears saying “Added”. Re-install drivers if Odin fails to detect device.

Click on “PDA button” in Odin and navigate to select “.tar″ file which you have downloaded.

In Odin make sure that “Auto Reboot” and “F.Reset Time” are selected and “Re-Partition” check box is unchecked.

Click on Start button in Odin to start flashing Android 4.1.2 firmware. When flashing is complete you will get a PASS message.

Disconnect device from your computer and let it boot automatically.

DUEMA1 Android 4.1.2 firmware on Galaxy S 3 I9300T is now installed. You can check firmware version by going to Settings >> About Phone.

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