Help With Soft Bricked AT&T Galaxy S3

[SkinTag]

Yesterday my phone was rooted with Cyanogenmod. Like a dope I wanted to bring it back to AT&T stock. I've been trying to get my S3 back and running but I've had no luck. My phone can enter download mode, it can boot into recovery, and even shows the word SAMSUNG when you first boot up. I've tried using Odin 3.07 with several AT&T stock .tar files and I keep getting a FAIL. Does anyone have a clue as to why this is happening? :'(

 

[Golfdriver97]

Try redownloading the file, different USB ports, cables, updating PC drivers for Samsung, install them and restart.