So for folks who have bricked Note 3's that want root.. I would follow the link below. Follow the directions carefully. This will NOT trigger KNOX. If you have Kies installed, uninstall it. What this does is it installs the base rom that your phone is shipped with. There are a few disclaimers, so heed those.
Drivers:
http://forum.xda-developers.com/showthread.php?t=2038555
Odin:
http://forum.xda-developers.com/showthread.php?p=39111722
ADB/Fast boot tools:
http://uploaded.net/file/jsjd55bx
Root de la Vega [KNOX 0x0 Root - Lots of Versions - No Exynos]: (Find the Sprint version)
http://forum.xda-developers.com/showthread.php?t=2479952
Now I am not sure how to flash the stock firmware without the CSC file or if it is even needed.
NON Root Stock files:
Go to http://www.sammobile.com/firmwares/2/
Find your model number, the one for Sprint is SM-N900P and download. I am sure the file is going to be large, and you should be able to use odin for it.
Drivers:
http://forum.xda-developers.com/showthread.php?t=2038555
Odin:
http://forum.xda-developers.com/showthread.php?p=39111722
ADB/Fast boot tools:
http://uploaded.net/file/jsjd55bx
Root de la Vega [KNOX 0x0 Root - Lots of Versions - No Exynos]: (Find the Sprint version)
http://forum.xda-developers.com/showthread.php?t=2479952
Now I am not sure how to flash the stock firmware without the CSC file or if it is even needed.
NON Root Stock files:
Go to http://www.sammobile.com/firmwares/2/
Find your model number, the one for Sprint is SM-N900P and download. I am sure the file is going to be large, and you should be able to use odin for it.