The solved

In this page we will help you to eradicate XWUGML4 Android 4.3 Jelly Bean firmware. Continue reading this tutorial. oted device allows you to really take advantage of the hardware resources and to encourage the limitations that come with the stock firmware. Once rooted, you can access the file system, can overclock / underclock the CPU and GPU, can use the MOD and their various applications that require root access. However, once you root your device, the manufacturers warranty will be void. You can only get back to the proper follow unroot process.

Warning: 
This tutorial is only for Galaxy S3 GT-I9300. Don’t try this guide on any other Android device. Also, we are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. However, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.
Pre Requisites:

Though root don’t erase internal memory data but we recommend to back up your data first before proceeding to avoid any uncomfortable situation.

1. Backup your device data. You can follow our ultimate backup guide.

2. Make sure your device have at least 60% battery power. You can install an app like Battery Notifier BT Free on your Android device to check it easily.

3. You already have USB Driver Installed for Galaxy S3 GT-I9300 in your PC. Download USB Drivers

4. Make sure USB Debugging is enabled otherwise you won’t able to transfer file between PC and Galaxy S3 GT-I9300.

How To Root I9300XWUGML4 Android 4.3 Jelly Bean On Galaxy S3 GT-I9300

1. Download Odin v3.09 and root file for I9300XWUGML4.
2. Extract CF-Root zip file that you downloaded earlier from above link, you will get a .tar.md5 file.
3. Extract Odin zip file and you will get Odin3 v3.09.exe along with few other files.
4. Power off your Android device. Wait 5-6 seconds for vibration to confirm complete switch off.
5. Now, put the Galaxy S3 GT-I9300 in Download Mode by pressing and holding down the Volume Down,Home and Power button together. A warning Lcd will come up; press Volume Up button to enter Download Mode.
6. Now run Odin3 v3.09.exe (see Step 3) as an Administrator because Admin privileges is required to complete the process smoothly (only applicable Windows Vista and higher).
7. Now connect your device to your PC using USB cable. An “Added!!” massage will appear in Odin’s message box. If you don’t get the same then you should try another USB port (try USB port located in back in your desktop PC). If that too don’t work then you should reinstall the driver. If you successfully see the “Added!!” message in Odin then you are ready to go in next step. You should also see COM port with a number in Yellow if you successfully added your device.
8. Click the AP Button, and select that CF-Auto-Root-m0-m0xx-gti9300.tar.md5 file that you get in Step 2.
9. In Odin window, make sure only Auto Reboot and F. Reset Time checkboxes are selected.
10. Double check everything that we mentioned in Step 8 & Step 9 above. Now, once satisfied hit the START button to begin the flashing process.
11. Once flashing completed, your Galaxy S3 GT-I9300 will restart and soon you will see a PASS message with green background in the left-most box at the very top of the Odin. You can now unplug the USB cable to disconnect your device from computer.

Congrats! You just rooted Samsung Galaxy S3 GT-I9300 running on I9300XWUGML4 Android 4.3 Jelly Bean firmware. To confirm if you successfully rooted your Android device or not install an app called “Root Checker” which is available for free from Google PLAY store.