Root Galaxy S4 LTE I9505 on Android 4.3 firmware I9505XXUEMJ5 using CF-Auto-Root Tool

If you’ve updated your Galaxy S4 I9505 to the Android 4.3 firmware that Samsung released yesterday and wondering if it could be rooted, then we’d like to inform you that CF-Auto-Root by Chainfire is working just fine for the Android 4.3 update. However, there’s one issue with using the CF-Auto-Root to root the latest update. The I9505XXUEMJ5 firmware update includes the KNOX security implementation which will get triggered if you root the firmware using CF-Auto-Root, and it cannot be reset or erased. Samsung will know that you’ve rooted your device if ever you take to service center to claim warranty.


Warranty may be void of your device if you follow the procedures given on this page!

You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components.


To make sure your device is eligible with this, you must first confirm its model no. in ‘About device’ option under Settings. Another way to confirm model no. is by looking for it on the packaging box of your device. It must be GT-I9505!

Please know that this page is meant only for Samsung Galaxy S4, model no. GT-I9505. Please DO NOT try the procedures given here on other variants of the Galaxy S4: GT-I9500, or the S4 sets at Verizon, T-Mobile, Sprint, AT&T and others who have different model no.


You must do this pre-installation stuff before attempting to root your Galaxy S4 I9505 in order to avoid any complications later, and have a smooth and successful process.


Back up important data and stuff before you start playing around here as there are chances you might lose your apps and app-data (app settings, game progress, etc.), and in rare case, files on sd card, too.

For help on Backup and Restore, check out our exclusive page on that linked right below.



You must have proper and working driver installed on your windows computer to be able to successfully root your Samsung Galaxy S4. In case you’re not sure, follow the link below for a definitive guide for installing driver for your Galaxy S4 on your computer.



If your android device, or PC, powers off due to lack of battery while the process is underway, it could damage the device. So, make sure both of them are adequately charged and that no power interruption takes place when the process is undergoing — at least 50% battery of the device and laptop is what we would recommend.


└ Use original USB cable to connect your phone to PC.

└ Do not use the procedures given below on Mac (using VMWare) as it works best on proper Windows PC only.


If you haven’t used Odin software to root a device before, we suggest you first watch a video of that, given right below, to get familiar with the process.

Btw, the video below shows installing the CF Auto Root on Samsung Galaxy S3 (yes, not S4!). But as the process is exactly same, it doesn’t matter.




Download the files given below and save them in a separate folder on your computer (just to keep things tidy, that is).

  • CF-Auto Root file with Odin: DOWNLOAD LINK
    File name:
    File size: 19.2 MB


Once you’ve finished downloading the file given in downloads section above, follow the instructions below for rooting your Galaxy S4 LTE I9505.

Important Note: Backup important files stored on internal SD card of your device, so that in case a situation arises requiring you to do a factory reset after installing the root, which might delete internal sd card too, your files will remain safe on PC.

  1. Extract/Unzip the file on your computer (using 7-zip free software, preferably) to get these files:
    • CF-Auto-Root-jflte-jfltexx-gti9505.tar.md5
    • Odin3-v1.85.exe
  2. Disconnect the Galaxy S4 from PC if it is connected.
  3. Double-click the Odin3-v1.85.exe file to open Odin.
  4. Boot your Galaxy S4 GT-I9505 into Download Mode:
    1. Power off your phone first and wait for 6-7 seconds after display is off.
    2. Press and hold these 3 buttons together until you see Warning! screen: Volume Down + Power + Home.
    3. Press Volume Up now to continue to Download Mode.
      Smasung Galaxy S4 Download Mode
  5. Connect Galaxy S4 to PC. Odin window will show an Added!! message in bottom left box.
    Odin’s screen would look like this:
    Odin Added!! Message
    If you don’t get the Added! message, here are some troubleshooting tips:
    • Make sure you have installed driver for Galaxy S4 as said above in ‘Before you begin..’ section.
    • If you have already installed driver, then uninstall them and reinstall back.
    • Connect using a different USB port on your PC.
    • Try a different USB cable. The original cable that came with your phone should work best, if not, try any other cable that’s new and of good quality.
    • Reboot phone and PC and then try again.
  6. Load the CF-Auto-Root file (extracted in Step 1) into Odin as instructed below:
    • Click on the PDA button on Odin and select the CF-Auto-Root-jflte-jfltexx-gti9505.tar.md5 file (from step 1).
      Your Odin window should look like the screenshot below:
      CF-Auto-Root for Galaxy S4 GT-I9505
  7. Click the Start button to begin flashing CF-Auto-Root on your Galaxy S4 GT-I9505, and wait until you see a PASS! message in Odin’s top left box.
  8. When you get PASS! message, your phone will restart automatically. You can then disconnect your phone from PC. CF-Auto-Root Pass Message

If you see FAIL message instead of the PASS in Odin’s top left box, that a problem. Try this now: disconnect your Galaxy S4 from PC, close Odin, remove phone’s battery and put it back inside in 3-4 seconds, open Odin and then repeat from Step 3 of this guide again.

Also, If device is Stuck at setup connection or on any other process, then too, try this: disconnect your Galaxy S4 from PC, close Odin, remove phone’s battery and put it back inside in 3-4 seconds, open Odin and then repeat from Step 3 of this guide again.

That’s all. If you need help regarding this, feel free to ask us in comments below.

Confirm Root Access

You must have a new app installed now: SuperSU. Check it in app drawer. However, in case you don’t see it on your phone, try installing the app separately from Play store — SuperSU Play store link.

To check whether you got root access or not, use this simple made-for-this-purpose app, Root Checker.


Armstrong Vogel has suggested a cool tip in comments below to get rid of the Knox verification message that appears every time SuperSU is called for action. The error message reads “SuperSU tried to access system in your device without authorization. This action was blocked”.

To get rid of it, freeze all the Knox related apps installed on your phone, you can use Titanium Backup app to do that. Here are the apps you need to freeze — KNOX: 3.0; 1.0; Agent 1.0; Store 1.0 and the Knox Notification Manager 1.0. Thanks Armstrong!

Feedback Us!

It was easy, right? Let us know what you plan to do now, with root access gained.

Suggestions are most welcomed!


Shivam is our resident designer and web developer who also enjoys writing. He loves to meditate, drive on the freeways and hunt for snipers during his Call Of Duty playtime. Email: