Unhappy [Q] Odin FAIL when I try to flash an stock firmware on my I9505

Hello everybody. I have a Samsung Galaxy S4 factory unlocked.

A week ago I rooted my phone and changed the firmware to an Android Google Play Edition 4.4 Kitkat. Now, I would like to return to the official stock version. I downloaded the firmware from sammobile and other sources. When I try to flash using Odin, always get a FAIL. This is the ODIN messages history.

<ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> I9505XXUEMK9_I9505VFGEMK2_I9505XXUEMK9_HOME.tar.md 5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Set PIT file..
<ID:0/003> DO NOT TURN OFF TARGET!!
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> SingleDownload.
<ID:0/003> sbl1.mbn
<ID:0/003> NAND Write Start!!
<ID:0/003> sbl2.mbn
<ID:0/003> sbl3.mbn
<ID:0/003> rpm.mbn
<ID:0/003> aboot.mbn
<ID:0/003> FAIL! (Auth)
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/003> Removed!!
<ID:0/003> Added!!
<ID:0/003> Removed!!

I tried changing the USB port, uninstalling and instaling Kies, I used different root files, even I used a PIT file, following the steps in this thread (http://forum.xda-developers.com/show....php?t=1727443). I already check kies is not running on background. I tried with different Odin version (1.85, 3.04, 3.07 & 3.09)

I dont know how to fix this problem. Please if anyone can help me I really appreciate.

Thank you so much for all your replies.