Cant donwgrade S4 - i9506 from 5.0.1 to 4.4.2

[AC Question]

Hello guys.

I have some problems with Lillipop like battery drain, wifi disconnecting and some minor issues.So I decided to downgrade my phone to Kitkat version, but after few seconds in Odin it says "fail"

I have Samsung s4 - gt i9506 black edition, so Im downloading this sammobile.com/firmwares/download/40605/I9505XXUGNG8_I9505YXXGNH2_ORX/

Also this is what it says in phone when it fails: secure check fail : aboot
And here is the log from Odin:

<ID:0/004> Added!!
<OSM> Enter CS for MD5..
<OSM> Binary Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/004> Odin engine v(ID:3.1100)..
<ID:0/004> File analysis..
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Firmware update start..
<ID:0/004> SingleDownload.
<ID:0/004> aboot.mbn
<ID:0/004> NAND Write Start!!
<ID:0/004> FAIL! (Auth)
<ID:0/004>
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

Thank for you helping me to resolve this problem.

P.S. my phone is rooted.