Originally Posted by Coug76
How did you get to this point? Did you have a custom recovery running, if so which one? ROM? Did you try to revert from 4.3 to 4.1 via Odin? Have you done a wipe? What steps have you taken so far? Something as simple as kies emergency recover could get you back.
You may be able to recover.
Hastily spouted for your befuddlement
I got into this I believe by accidentally wiping 'system' via TWRP. I was wiping the phone to trade, and believe I wiped more than I should have. I have flashed back to TMO_T889UVUCMK7 stock via Odin, same boot loop.
I tried the Kies Emergency Initiasin and it goes through successfully. Then I boot into stock recovery, wipe cache and wipe data, and it will boot back into a boot loop.
I would even consider flashing a Pit File at this point.