CF Auto Root
CF Auto Root is a really easy to use Root method created by Chainfire hence the CF and he is also the creator of SuperSU app along with many other awesome Android Apps. This root method is compatible with most Samsung and Google Nexus Devices it works with either the Odin Program or Fastboot commands for the Nexus devices check here to see if your device is compatible with this amazing CF AUTO ROOT TOOL
NOTE- When selecting the Right CF auto root files to download it will be helpful to go into your device setting and then about phone or tablet and look at the info there then match it up with the info on the site downloads.
How to use Odin and Fastboot
ODIN flashable devices
All downloads contain .tar.md5 files flashable in ODIN as PDA.
Make sure your device is in ODIN download mode (usually you can get there by holding VolDown+Home+Power when the device is turned off), then start the included Odin3-v1.85.exe file, press the PDA button, select the .tar.md5 file, and click Start. You can find more detailed instructions and assistance at XDA.
A modified recovery and cache partition will be flashed, which will install (only) SuperSU, then clean-up the cache partition and re-flash the stock recovery.
For the root to work, the device must reboot into recovery. Most devices will do this automatically after flashing these files, but in case that does not happen, please boot into recovery manually.
If you have locked bootloaders, flashing one of these will probably brick your device – with the exception of Nexus devices, which will usually automatically “OEM unlock” and wipe your data !
Download the Odin Program you will need HERE
Download the samsung usb drivers for your computer if you dont already have them HERE
Fastboot flashable devices
All downloads contain .img files bootable through Fastboot.
Make sure your device is in Fastboot mode (usually you can get there by holding VolUp+VolDown+Power when the device is turned off), then run the included script for your OS. On Linux and Mac, you may have to chmod +x root-linux/mac.sh before the script does anything.
A special boot image will load, which will install (only) SuperSU, then reboot into Android.
The included scripts perform an “OEM unlock”. If this fails, the root will not work. If it succeeds, and you were not previously unlocked (first time rooting ?), it will probably wipe your data !
For some device (Sony, Verizon, etc) you may need an OEM-specific tool to unlock the bootloader. Please do not forget to check and use this tool, if provided by the OEM.
Download the fastboot files you will need for WIndows HERE
Check out the main thread for CF Auto Root on XDA developers site HERE