Samsung Galaxy S3 — How to root the Galaxy S3 4G LTE GT-i9305 on Android Jelly Bean 4.1.2

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Loie Favre
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Jul 5, 2013 12:04:22 PM via Website

This tutorial is exclusively for the Samsung Galaxy S3 4G LTE GT-i9305 model running on Android Jelly Bean 4.1.2 XXBLL5. If you try to flash another model or Android version with this root, you could break your smartphone.
Neither AndroidPIT nor I will be held responsible for any damages or losses of data. Make sure you have completed a full backup of your files before starting. Not sure what rooting/flashing/ROMS even are? Check out our Rooting for Beginners Q&A's and some custom ROMS that may be at your level.

Again, do NOT try this on your Galaxy S3 i9300!!!!!


  1. Activate the USB debugging mode on your S3. To do this, simply go to Settings → Developer options → USB debugging.
  2. Make sure that the drivers for your Galaxy S3 have been installed on your computer. In order to do this, connect your smartphone to your PC with your micro USB cord and wait until your smartphone is recognized by Windows.
  3. Charge your smartphone until at least 75% full.
  4. Download and decompress Odin on your computer.
  5. Download the file called I9305_CWM_Recovery.tar.md5 
  6. Download the file called

Install Clockwork Recovery (CWM)

  1. Launch Odin
  2. Place your Galaxy S3 4G in download mode (volume down+home+power for about 10 seconds)
  3. Connect your Samsung Galaxy S3 4G LTE GT-i9305 via the USB cable to your PC and wait until it's recognized by Odin. A small rectangular box in the top left of the window showing O:COM should appear.
  4. Click on PDA and select the I9305_CWM_Recovery.tar.md5 file, which you have downloaded in step 5 of the prerequisites.
  5. In Odin, don't touch any other options and make sure that no additional boxes have been checked.
  6. Click on start, and wait until the Galaxy S3 reboots. Power it down and up one more time.

The first part is done!

The Root

  1. Start off by taking advantage of the Custom Recovery that you have just installed by completing a full backup.
  2. To do this, restart your smartphone in recovery mode (volume up+home+power for 10 seconds)
  3. You will then navigate within the menu using the volume buttons and select ''backup and restore'', and then ''backup''.
  4. Then select ''Reboot now''
  5. Place the file on the root of your phone.
  6. Restart your smartphone again in recovery mode (see step 1) and select ''install zip from SD card''.
  7. Navigate to the file and validate.
  8. Once the file has been installed, return to the main menu and select reboot now.

If this doesn't work on your phone

  1. If you aren’t able to get access to the Custom Recovery, this means that the original Android recovery mode re-installed itself when powering up and crushed the Custom Recovery. Follow these instructions to bypass this problem.
  2. Complete the same procedure to install the CWM but at the end when the Samsung logo appears when powering up the S3 4G, wait 2 seconds and turn it off right away. The image following the Samsung logo shouldn't have the time to load.
  3. Next, proceed with the root.
  4. Then, install a file explorer (File Explorer, ES File Explorer File Manager etc) with the root rights and search for the file named boot-recovery.p or else recover-from-boot which can be found in the directory /system. Rename it by adding .bak at the end (example: boot-recovery.p-bak). Next, re-do the installation process for Clockwork Recovery.

That should do it!

— modified on Jul 5, 2013 12:28:11 PM

Aug 14, 2013 9:20:23 PM via Website


I tried this but my phone gets stuck on the paranoid android logo screen. I can also see a red ! on the samsung logo screen

please help

Nov 28, 2013 8:31:57 AM via Website

Hi! Is there anyone or any instructions on how to root my Galaxy S3 SGH-T999N?
Thanks, Paul

Mar 11, 2015 12:22:07 PM via Website

i need expert opinions concerning my Samsung galaxy 3 phone & Rooting bcuz im very just yesterday i was looking through my phone & noticed several credential certificates that werent there before bcuz i never tried doing such thing. Then i realized somebody has been messing with my phone behind my back & trying to root it. I dont know who did this but who ever is doing this is up to no good.The certificates make no sense & i found some strange apps that i never have seen before. Worst of all im not giving the option to clear/remove certificate credential. Should i be worried? I wanna know what this person is trying to do...some one help!