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Samsung recently released a new Android 4.3 build with base firmware I9300XXUGNA7 for the international version of Galaxy S3 with model number GT-I9300. The latest stock firmware is available for a number of countries such as Morocco, Nigeria, South Africa, Turkey, Algeria and Egypt via OTA update and through Samsung Kies server, notes Honai of Android.
Version: Android 4.3 Jelly Bean
Build date: 21 January
Galaxy S3 users, who have already updated their devices to I9300XXUGNA7 Android 4.3, may follow our step-by-step guide to root the same using CF-Auto-Root by recognised XDA developer, Chainfire.
IBTimes UK reminds its readers that it will not be held responsible for any mishap. Users are also advised to verify their devices meet following set of requirement.
1) Install USB Driver for Samsung Galaxy S3 to transfer files between the Android device and the computer.
2) Enable USB Debugging Mode on phone to connect it with computer and use Android SDK with it. [Navigate to Settings>> Developer Options to enable USB debugging mode.]
3) As the tutorial might wipe out all data of the phone, create a backup. If the device is having any custom recoveries such as ClockworkMod or, TWRP then backup data using the recovery.
4) If the Android phone powers off due to lack of battery while the installation process, it could damage the device. Therefore, the Galaxy S3 should have charge above 80% battery charge.
5) The device will lose manufacturer's warranty once it is rooted.
6) The CF-Auto-Root files work only with the Galaxy S3 GT-I9300. As applying this on any incorrect variant might brick the device, verify the model number of Galaxy S3 by navigating to Settings>> About phone>> Model number.
How to root Samsung Galaxy S3 on I9300XXUGNA7 Android 4.3 Jelly Bean
Step-1: Download CF-Auto-Root file for Galaxy S3 to computer
File name: CF-Auto-Root-m0-m0xx-gti9300.zip
Step-2: Extract the root zip using any extracting tool to get .tar.md5 file
Step-3: Download Odin3_v3.09 and extract it to get Odin3 v3.09.exe file
Step-4: Switch off Galaxy S3
Step-5: Boot the phone into Download Mode by pressing and holding Volume Down, Home and Power buttons together. When a warning screen will appears, press the Volume Up button to enter into Download Mode
Step-6: Run Odin3 v3.09.exe as Administrator
Step-7: Connect the phone to the computer using USB cable while it is in Download Mode. Wait for some time until Odin detects the device. When the phone is connected successfully, an Added message will appear under Odin message box. Additionally, the ID: COM box in Odin will turn blue with the COM port number indicating successful connection
Note: If the Added message does not appear then try another USB port, try the one located at the back side of the computer. In case Odin still fails to recognise the device then reinstall USB driver.
Step-8: In Odin, click the AP button and select CF-Auto-Root-m0-m0xx-gti9300.tar.md5 file which was extracted earlier
Step-9: Verify Auto-Reboot and F.Reset Time checkboxes are selected in Odin
Step-10: Click the Start button in Odin to begin the installation
Step-11: When the installation process is completed, the phone will restart and soon a PASS message with green background will appear in the extreme left box at the very top of Odin. Unplug the USB cable from the phone to disconnect it from computer
Galaxy S3 should now be rooted successfully on I9300XXUGNA7 Android 4.3 latest stock firmware. To confirm the phone is rooted, install Root Checker app available for free at Google Play Store.
Sometimes the device does not boot into Recovery Mode and root the device. If this happens, then perform the entire procedure again. If it still does not install root, ensure Auto Reboot checkbox in Odin is not checked. After flashing the root package, pull out the battery and boot the phone into Recovery mode by selecting Volume Up, Home and Power buttons together. This will start the installation process and root the phone.
[Source: True Android]