June 5, 2013

How to Root Galaxy S3 (AT&T) SGH-I747 on Android 4.1.1 Jelly Bean Firmware

An official firmware Over-The-Air (OTA) update has been released for the AT&T subscribers of Samsung Galaxy S3 with model number SGH-I747.

Samsung Galaxy S3 (AT&T) SGH-I747 users who have already updated their devices with Android 4.1.1 Jelly Bean, may root their devices using the tutorial below.

This tutorial uses CF-Auto-Root file released by recognised XDA Developers, Chainfire. The CF-Auto-Root file allowing Galaxy S3 users to root their devices easily without depending on the firmware. It completely supports Android 4.1.1 Jelly Bean and future firmware as well. Head over to the CF-Auto-Root main thread to learn more about the root method.

Disclaimer: Rooting voids the warranty of your device. We and the developer of this rooting procedures shall not be held responsible if any undesirable outcomes may happen to your device. use of this root guide is solely at your own risk!

Pre-requisites
1) Install USB Driver for Samsung Galaxy S3 on the computer.
2) Enable USB Debugging Mode on the phone by navigating to Settings >> Developer Options (Android 4.0 or later) or go to Settings >> Applications >> Development (Android 2.3 or earlier).
3) Make a backup of all your important data before following the guide.
4) Ensure the battery of the phone is charged more than 80 percent.
5) The CF-Auto-Root file works only on Samsung Galaxy S3 (AT&T) SGH-I747 running on Android 4.1.1 Jelly Bean firmware. Applying this to any incorrect variant might brick the device. Verify the model number of the Galaxy S3 by navigating to Settings >> About Phone.

Files Required
1. CF-Auto-Root (Mirror Link) for Galaxy S3 (AT&T) SGH-I747 (CF-Auto-Root-d2att-d2uc-samsungsghi747.zip)
2. Odin 3.07

Steps to Root Galaxy S3 (AT&T) SGH-I747 Running on Android 4.1.1 Jelly Bean Firmware
Step 1: Extract CF-Auto-Root and Odin 3.07 files using WinRAR/7-Zip/WinZip or any other extracting tool.
Step 2: Switch off the Galaxy S3. Then boot the device into Download Mode by pressing and holding Volume Down, Home and Power buttons together until a construction Android robot icon with a warning triangle appears on screen. Now press the Volume Up button to enter Download Mode.
Step 3: Launch Odin on the computer as an Administrator.
Step 4: Connect the Galaxy S3 to the computer using USB cable while it is in the Download Mode. Wait until Odin detects the device. When the device is connected successfully, the ID: COM box will turn blue with the COM port number. Additionally, the successful connected will be indicated by a message saying Added.
Note: If the Added message does not appear, then try re-install USB drivers or changing the port on the computer.
Step 5: In Odin, click the PDA button and select the CF-Auto-Root-d2att-d2uc-samsungsghi747.tar.md5 file.
Step 6: Verify that Auto Reboot and F.Reset Time checkboxes are selected in Odin. Also, ensure the Re-Partition option is not selected.
Step 7: Double-check and click Start in Odin. The installation process will now begin.
Step 8: Once the installation process is completed, your phone 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.

Samsung Galaxy S3 (AT&T) SGH-I747 running on Android 4.1.1 Jelly Bean firmware is now rooted successfully. You can now install any app that requires root permission. Verify the root status of the device by downloading Root Checker app from Google Play Store.

Note: Many Samsung devices store a flash counter that keeps track of how many times you have flashed custom firmwares to your device. Triangle Away can be used to reset the flash counter to zero.

Thank's to all fellas at XDA who first tried out this rooting technique. This method was originally posted via XDA-Developers original thread.

31 comments:

  1. AT&T has not yet release the JB 4.1.2 for the SGH-I747. How is this possible if this post is only for the JB 4.1.2.

    ReplyDelete
  2. Please sign this petition.

    http://forums.att.com/t5/Android-Discussion-and-Support/Petition-for-the-release-of-the-4-1-2-Jelly-Bean-update-for-the/td-p/3500359

    ReplyDelete
    Replies
    1. Hopefully available for us soon enough! :)

      Delete
  3. Can anyone say of this worked for the and if they had any problems

    ReplyDelete
    Replies
    1. This worked perfectly for me.
      Step 6 would not allow me to make those selections because that area of odin would not allow me to click any of the boxes.
      Regardless, when I followed this step by step (except for step 6) and clicked start, it took about 30 seconds to fully root and reboot. This is a very good guide.

      Delete
  4. when I plug the device in odin says it's added but the box does not turn yellow. And when I try to install it it fails.

    ReplyDelete
    Replies
    1. Try re-install USB drivers or changing the port on the computer. Make sure you have completed all the pre-requisites above.

      Delete
  5. If i root it with this option can i get the 4.1.2???

    ReplyDelete
    Replies
    1. In order to receive Over-The-Air (OTA) updates you need to unroot the phone. For the case of root with CF-Auto-Root, you can unroot from SuperSU setting, there is option to unroot completely.

      Delete
  6. Is there a way I can update my phone to the newest jellybean firmware without rooting my phone? I have att and their only update is to 4.1.1 and im wanting atleast 4.2 or 4.3 would be great considering it was just released.. :) thanks

    ReplyDelete
  7. Or if I cant can you tell me a step by step method to do so or send me a link??? thank you..

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  8. I used it and it worked great. Anyone know of a good wifi tether app that requires root access?

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  9. As with the Galaxy Tab 2 10.1, my Galaxy S3 rooted perfectly using these instructions. I did get nervous that the "Pass" took a while to display after the phone rebooted.

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  10. This worked wonderfully. Time: 2:09. Although I was worried when it said RESET in top left box. Took a little while to turn green.

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  11. My AT&T Galaxy S3 has been recently updated to Android 4.1.2. Can I root it using this method?

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  12. i have a mac and it doesnt seem to work for me?

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  13. I am running a Samsung S3 on AT&T with the recent 4.1.2 update. This process worked perfectly. SuperSu (which I had already had installed) had everything rooted that was supposed to be. I even double checked by running Game Killer as it says "rooted" or "unable to root" depending on your current root status. Thank you to everyone that put this together and laid out the files so simply. Perfect.

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  14. Thanks a ton works like a charm on my AT&T Galaxy S3 running Jellybean 4.1.2.

    ReplyDelete
  15. All procedures went ok, but the device did not root....
    I checked with two software from google play, but it says not rooted....

    Can anyone please help.

    ReplyDelete
  16. thanks for the impressive guide!!
    i have only one question to ask,
    its importent that my phone will be over 80% battery life?

    ReplyDelete
  17. THANKS SO MUCH!!
    FINALLY FIND ROOT FOR MY DEVICE!!
    YOUR THE BEST!!!!!!!!!!!!!!!!!!!!111

    ReplyDelete
  18. Worked for me. Now, how do I install roms???? Do I need CWM or what???

    ReplyDelete
  19. i got the samsung s3 i747(at&t) which has already been root to Android kitkat 4.4. is it possible fornto root it back to jbeans 4.2 with this step.

    ReplyDelete