ទស្សនាវដ្ដីអេឡិចត្រូនិចកម្ពុជា : How to Root Galaxy S3 Jelly Bean or ICS!

Here’s an updated root method for rooting your Galaxy S3 GT-i9300. Please do not use this root method unless you have GT-i9300 international model. If you didn’t buy your Galaxy S3 in the U.S. or Canada, you most likely have the GT-i9300.

Step 1. Power off your Galaxy S3. Then hold down Volume Down, Center Home, and Power buttons together until you see the warning screen.

Step 2. Hit Volume Up button to enter Download ODIN mode and connect a microUSB cable from your Galaxy S3 to your computer.

Step 3. Next, download GalaxyS3RootNew.zip, unzip the files and run odin3v1.85.exe by double-clicking on the file.
Download GalaxyS3RootNew.zip

Step 4. When ODIN program opens, you should find a highlighted yellow box with a random COM number. If you don’t see this, download and install Samsung USB drivers below:

Download Samsung USB drivers

Step 5. DO NOT TOUCH ANYTHING ELSE, hit “PDA” button and select the file CF-Root-SGS3-v6.4.tar.

Step 6. Hit “Start” button. This will install ClockworkMod Recovery on your Galaxy S3 i9300. If you get stuck on this step, just try a different USB port.

Step 7. Once ODIN is done flashing, you will see “PASS!” in green highlighted box.

Step 8. Your Galaxy S3 will reboot once into CWM Recovery and automatically install root and Superuser app.

Step 9. Once your phone reboots, you will find an app called “SuperSU”, this is your superuser app.

Step 10. Download and install Titanium Backup app from Play Store to verify you have root, a Superuser request window should pop up.

That’s it! This should take you less than 5 minutes to do and does not affect your phone in any way but give you Superuser, root, and custom ClockworkMod Recovery.
I highly recommend you to boot into ClockworkMod Recovery and make your first backup ROM at this point, which will save everything including the stock ROM, your apps and settings.
if not work !!
try this.............
Reboot into recovery manually (Volume Up, Center Home, Power) then flash this in recovery:
http://downloadandroidrom.com/file/tools/SuperSU/CWM-SuperSU-v0.96.zip
you need to reinstall stock recovery:
http://galaxys3root.com/galaxy-s3-tutorials/how-to-re-install-stock-recovery-and-update-ota-on-galaxy-s3/

Latest firmwares

Model	Country/Carrier	Date	Version	PDA	CSC	Download	Unlock	Info
GT-I8190	Hungary	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Spain	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	United Kingdom	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Romania (Cosmote)	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Slovakia	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Open Austria	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Nordic countries	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Baltic	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Greece	2012 October	Android 4.1.1	I8190XXALJL	I8190OXXALJ8	Download	Unlock	Info
GT-I8190	Germany	2012 October	Android 4.1.1	I8190XXALJL	I8190OXAALJL	Download