[Q] Softbricked my S4 ;( topic

Hey everyone,

I tried updating my Verizon Galaxy S4 to Lollipop via Samsung Kies. The update process produced an error message (at app. 70%) and offered me to start the recovery process, which failed subsequently. Needless to say, Android OS does not work, however I can still boot into download/recovery mode.

I've been trying to flash various stock ROMs via Odin 3.10 with no success. The build numbers of the ROMs I've been trying to flash contained the I545VRUFNC5 number, since I tried preserving compatibility with the previous (Stock) ROM that had the same build number. Prior to flashing Lollipop via Kies, I made the made a screenshot (attached below) in case I ran into some kind of trouble. It contains the Model/Build of my S4.
I've also tried using a PIT file during the flashing process with no success.
The error message Odin gives me always reads:

Code:

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<ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> I545VRUFNC5_I545VZWFNC5_I545VRUFNC5_HOME.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin engine v(ID:3.1005)..
<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> aboot.mbn
<ID:0/003> NAND Write Start!!
<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!!

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The main Question is whether I need to stick to build I545VRUFNC5 to reflash. If not, which Stock ROM am I able to Install via Odin without bricking the phone further ;)
For exact phone model/specs pls open the screenshot below. I would also be very grateful if someone could provide me a Stock ROM (name/link/version) that I could flash via Odin to resolve the mess Kies and I created.

Any help is much appreciated.
Tanks in advance.

Attached Thumbnails