How To Update Samsung Galaxy S3 GT-I9300 Software

To Update Samsung Galaxy S3 GT-I9300 Software you need to install a newer firmware version on it. You can update your Samsung Galaxy S3 GT-I9300 without a computer by going to Settings > About Device > Software Update. Also, You can update this Samsung device manually, But you need to use a computer.

In this Guide, You will learn how to update Samsung Galaxy S3 GT-I9300 manually by using the Odin3 flasher and Samsung Stock Firmware files.

Samsung Galaxy S3 GT-I9300 Update Check List:

1- The Software Update process will wipe all your data, So backup all the wanted data (Contacts, SMS, Photos, Videos,… Etc).

2- Make sure that you know all the emails and passwords you use on this device.

3- Ensure your Samsung Galaxy device has enough charge level (50% at least).

4- Download Odin flasher and extract it to a known location on your computer.

5- Download the suitable Samsung Firmware package for your Galaxy S3 GT-I9300.

6- Extract the Downloaded Samsung Firmware package to a known location on your computer.

7- Download and Install Samsung USB Driver for Mobile phones.

Update Samsung Galaxy S3 GT-I9300 Software (Step by Step):

1- Run Odin3.exe program as Administrator.

2- Make sure these options are checked: Auto Reboot, F.Reset Time.

3- If you want to flash PIT file then check Re-Partition option, Otherwise let it unchecked.

4- Click on PIT button and select: M0_EUR_OPEN_4G.pit (Only if Re-Partition option is checked).

5- Click on PDA button and select: AP_I9300XXUGMK6_2168382_REV00_user_low_ship.tar.md5

6- Click on PHONE button and select: MODEM_I9300XXUGMK6_REV02_REV04_CL1413323.tar.md5

7- Click on CSC button and select: CSC_OXA_I9300OXAGMK6_2168382_REV00_user_low_ship.tar.md5

8- Turn Off your Galaxy S3 and put it into Download Mode ( Press Volume Down + Home then Power button).

9- Use the USB cable to connect it to the computer.

10- Wait until the computer detects the newly connected device completely and installs the needed drivers for it.

11- You should see the COM port number of your device at Odin3 window (0:[COMxx]).

12- Click on the Start button to let Odin3 flasher install the new firmware files on your Galaxy S3.

13- The installing process will take several minutes, And when it is done, The Odin3 flasher will reboot your Galaxy device.

14- Look at Odin3 window, If you see PASS! Word at Odin3 program’s window, That means the update was done successfully.

15- Disconnect the USB cable.

16- When your Galaxy S3 is fully on select your preferred device language and follow the on-screen instructions to proceed with the initial setup.

17- Done, You have updated the software version of your Samsung Galaxy S3 GT-I9300.

Notice: In case you extracted the Samsung Firmware Package and you got one big file only, Then select it as PDA file.