This guide is intended to prevent some adventurous new Galaxy S 4 owner from bricking their brand new phone
This is also the future home of the collection of kernels, ROMs, Mods, etc that will be in development in the near future (hopefully).
Adam Outler and crew are currently trying to unlock the AT&T Galaxy S 4 bootloader. Please go to their thread and show their THANKS buttons some love.
READ "The rules" IN THE OP
This method of root was exploited by djrbliss. Please visit the original thread and thank him by any means you see fit.
This is not done through download mode or recovery, so don't worry about any button combos. The phone just needs to powered on and running the way you would normally use it.
First things first. You should begin downloading the files you'll need later on.
Download the latest Samsung USB Drivers and the Root Exploit Executable
Begin installing the Samsung USB Drivers.
It can appear that the installer program isn't doing anything for a while so just be patient.
When the motochopper.zip file finishes downloading
right-click on it and select Extract All...
I usually just leave it at the default location and click Extract
It should finish this fairly quickly. When it does finish, open the motochopper folder in the resulting window. You can now ignore this window until you need it later.
For the sake of efficient use of time, while the drivers are being installed and motochopper.zip is being extracted, you should turn your attention to the phone itself. It needs to be prepared for being connected to your computer for the first time.
USB debugging within Developer options needs to be enabled to use this exploit. There are some that would say that if you don't know how to do this, you shouldn't be in the development forums. To them I say, "Everyone had to learn from somewhere. WHY NOT HERE??"
To enable Developer options, open Settings and click on the "More" tab, then "About device". Mine shows where Developer options will be after doing this.
Near the bottom is an entry called "Build number", click on it repeatedly (7 times) until a toast pops up telling you that developer mode is on.
Press the back softkey and click on "Developer options". If you don't see it, you didn't click the "Build number" enough times.
Click on USB debugging
click OK on the "Allow USB debugging" window that pops up.
When the Samsung USB Drivers are finished installing, connect the phone to your computer using the USB cable that came with your phone. Windows Update should start looking for software for your phone immediately as indicated by the popup window that appears at the bottom-right of your screen when you have your phone connected to the computer. You can click on this window to watch it's progress, or simply wait for the next one telling you that your device is ready to use.
After you see this dialog, go back to the folder that opened when you extracted motochopper.zip and double-click on the file named run.bat
and click Run on the dialog window that pops up.
when the command line window appears, press enter to begin rooting your phone.
A dialog window will appear on your phone asking you for permission to let ADB execute commands. Click OK.
when the rooting process finishes, press enter to reboot the phone and close the command line window.