Thanks to good guidelines:
ODIN Download Link
http://hotfile.com/dl/161620048/6c6d5...
Different version of ODIN if the one in the video gives you problems
http://stockroms.net/file/Tools/ODIN/...
TWRP Recovery Link
http://goo.im/devs/OpenRecovery/sgh-i717
Chainfire SuperSU for root
http://download.chainfire.eu/204
The above files are used for rooting. ODIN & TWRP (find latest version with *.img.tar extension) are on desktop. Chainfire SuperSU is copied to phone as zip file. Use ODIN to load TWRP file with "PDA" button. Power off phone, unplug. Hold volume down while plugging usb cable to desktop. Volume up to continue after welcome screen, ODIN shows phone detected at COM#. Click start in ODIN. Phone will be flashed and rebooted. Turn phone off after reboot. Hold Volume Up & Down and then Power button (all 3 buttons) together, until power on (vibrate), release power button, TEAMWIN screen shows up, release all buttons, Click INSTALL button on phone, look for cm-SuperSU zip file, swip to confirm Flash, when "Successful" shows, click Reboot System button on phone. Done.
To remove those unnecessary AT&T files, use the app called "Titanium Backup * Root" which requires root access. In Settings of phone, turn on Developer Options, turn on USB Debugging, turn on (optional) Security>Unknown Sources. Grant root when asked. Go to Backup/Restore column, click on AT&T apps, click Uninstall button on top right.
Wow. personally I think this page is without question engaging since I am using Odin 3.07. For the most part what got my attention best in this blog post is My PDA Button is always in disabled state. I think this is some issue when we use Odin 3.07 with Windows 8.1. Can you assist?.
Sure, elaborate your question.