Android developer Dan Rosenberg (aka djrbliss) recently announced that you can root your Samsung Galaxy S4 using the root exploit he originally published for Motorola devices—called Motochopper—as long as you have a U.S. model GS4 or any model with a Qualcomm-based variant.
Rooting Instructions
Per his instructions, to root your Samsung GS4, you'll need to:- Ensure that you've installed the latest Samsung USB drivers available for your phone before you start.
- Extract the entire contents of the Motochopper zip file.
- Make sure that USB Debugging mode is enabled on your device (Apps -> Settings -> Developer Options -> USB debugging).
- Connect your device to your PC via USB.
- If you're using Windows, navigate to the extracted directory and execute "run.bat". If you're using Linux or Mac OS X, navigate to the extracted directory in a terminal and execute "./run.sh".
- Approve the ADB connection from your PC on your device.
- Device should now be rooted!
Note: Like I mentioned above, this will only work on Qualcomm variants of the Galaxy S4. International variants of the device, with Samsung’s Exynos 5 Octa chips, cannot be rooted at this time.
http://goo.gl/RC7PP