[ Guide ] [GT-I9505] CF-Auto-Root
Everyone playing with this right now knows the drill, for the rest of you this post will be updated with more information soon. So here's only the short instructions: flash the included .tar.md5 as PDA using Odin, and make sure repartition is not checked. You should see a red Android coming up, and your device will be rooted. If the device boots normally without the red Android, reboot into recovery manually to trigger the process.
This root will trigger the flash counter, which you can reset (currently only the Qualcomm variant) using Triangle Away.
Downloads:
Qualcomm-based GT-I9505: http://download.chainfire.eu/316/CF-...xx-gti9505.zip (Should work on MD2 and newer, but not MDN and MDM firmwares)
NOTE:
Some have reported success on Sprint S4's, though I still advise against using it and waiting for a Sprint specific version.
AT&T S4's are locked, do not use this root unless you have unlocked it
VZW S4's are not seen in the wild yet, but I fully expect those to be locked as well, and incompatible with this root before a bootloader unlock
Source XDA
[GT-I9505] CF-Auto-Root - xda-developers