How to root Samsung Galaxy S4 value edition i9515? My father brought me this smart phoe and when I search on Internet chat with my friends i9500 and 505 are common but mine i.e.19515 is differnt and I dont have idea  to root it.
I have tried srsroot and motochopper. But no work

Help me out
I was able to root Samsung Galaxy S4 GT-I9515L running Android 4.4.2 by following the steps in CF-Auto-Root and using the datafiles in CF-Auto-Root-jflte-jfltexx-gti9505.zip

These are the steps in the link:


  
  Download and unzip the CF-Auto-Root-....zip file (see posts below this one)
  If you end up with a recovery.img and cache.img file, you've extracted twice. You need to end up with a .tar.md5 file - don't
  extract that one
  (USB) Disconnect your phone from your computer
  Start Odin3-vX.X.exe
  Click the PDA button, and select CF-Auto-Root-....tar.md5 (Note: PDA was renamed to AP in the current version of Odin3)
  Put your phone in download mode (turn off phone, then hold VolDown+Home+Power to boot - if it asks you to press a button to
  continue, press the listed button, or run adb reboot download command)
  (USB) Connect the phone to your computer
  Make sure Repartition is NOT checked
  Click the Start button
  Wait for Android to boot
  Done (if it took you more than 30 seconds, you need practise!)