[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] DeepPurple72:
Running G900V (Verizon) KitKat 4.4.4 STOCK ROM on SM-903VL !!!

Download G900V 4.4.4 Stock Rom HERE: https://www.androidfilehost.com/?fid=23991606952607146

Follow SAME directions as the SM-S902 4.4.2, only use the system/cache IMGs from this ROM instead!

( Yes, TowelRoot Works on this ROM! )

Debloat using a "System App Remover" app from playstore to delete the Verizon crap that you dont need/want.

Working for me on SMART-TALK (Verizon Carrier). Mobile Hotspot Works! (I'm using it now to post this)

I have already used the "PHONEINFO.APK" to do the LTE STEALTH MODE to add the APN for STRAIGHT TALK from previously using the 902L 4.4.2 rom.

I noticed that it does not seem to work on the G900V 4.4.4 - I'd suggest that while you have the SM-903VL FACTORY TEST flashed, trying the PHONEINFO LTE STEALTH MODE in that ROM if you have NO MOBILE DATA.

I also extracted the modem.bin file from the original SM-903VL MM 6.01 ROM's "AP" archive ( after extracting the MD5 files ), created a "tar" of just the modem.bin, and flashed the modem.bin.tar using ODIN AP mode to update the modem (baseband) back to MM 6.01 PH3 , for optimum performance as LTE seemed to be slower using the baseband that the FACTORY TEST flashed. I did not test PHONEINFO in the Factory Test rom - If it does not work and you have no mobile data, then you would have to install the 902L KK 4.4.2 first, root it with TR, then install PHONEINFO to be able to use the LTE STEALTH MODE in order to ADD the proper APN ( tracfone ) for STRAIGHT-TALK 4G/LTE mobile data to work. Then you can simply "dd" the system/cache img's from the G900V KK 4.4.4, reboot, let recovery do its thing and then when it reboots itself, go into recovery again and do the wipe data thing. The APN will not be affected. ENJOY!

FIngerPrint Scanner DOES NOT WORK ( maybe due to being ROOTed / ContextProvider errors - disabled that package )

*** I Believe the FIngerPrint Scanner will not work if the BOOT.IMG ( Kernel ) mismatches the SYSTEM image version, based on alot of googling. Since with a locked bootloader ( Toshiba Emmc ) we cannot flash the G900V boot image as ODIN fails ( due to bootloader locked ).

Also, I am using the modem from original SM-903VL MM 6.01

Performance is EXCELLENT! Running VERY FAST!

Xposed, ViperFX & ViperXifi, Lucky Patcher,etc ALL working. Phone/LTE/MOBILE HOTSPOT too!

Using Nova Launcher for Desktop ( love the 3D cube effects! )

I'm very HAPPY now that this SM-903VL has ROOT, and converted to G900V KitKAt 4.4.4

ITS SO EVIL HOW COMPANIES ARE LOCKING DOWN BOOTLOADERS / HINDERING ROOT!

If this where a PC, and they said you can ONLY install Windows 10 & You CANNOT be an ADMIN, but just a LIMITED USER, either their would be LAWSUITS or END-USERS say "FU" and NOT BUY the product.

Why should smart phones be any different from a PC in that respect?

Removed ALL Verizon apps EXCEPT VZ-NAVIGATOR ( which appears to work using STRAIGHT-TALK )

Also DISABLED/REMOVED the KNOX crap & SECURITY UPDATER too.

This can be done using SYSTEM APP REMOVER/UNINSTALLER, LUCKY PATCHER, etc.

Also using FDROID ( FOSS Software, kinda like the PlayStore app ), I use a nifty app called "autostarts"

to disable alot of apps from starting up at/after boot to save ram and battery.

Also, KNOX WARRANTY bit is still GOOD, doing all this stuff did NOT trip the KNOX WARRANTY!

THANK YOU SO MUCH XDA MEMBERS!!!! Your Posting of information has been extremely helpful! :o