unlocked SM-G900V on Tmobile - Software Update Question (not root/custom firmware)

dpaquin

New member
Aug 30, 2017
1
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0
Newport RI
(did a search as well as checked the recommended threads before posting)
As the title states, I have just picked up a Verizon Galaxy S5 that was unlocked and have my son's tmobile sim in and working currently, and with the proper APN info also)
It is currently on Android 4.4.4 and I would like to update it to the most recent available software. My questions are:

-What carrier's software do i install? VZW? When i hooked it up to the pc i let it install the proper USB drivers, and it has said there was software available(it was unable to connect doing it OTA)
-Is the software it found Marshmallow 6?
-Will updating through the VZW app on my pc erase any of the settings that are already there? The unlock, APN, Apps, etc?

I bought this for my son who has killed 3 Iphones in that many years and his main concern is that he has Snapchat :rolleyes:
I was able to find an older version that works on this phone as the most recent says it will not and he can't get it from Google Play, I dl'ed an old apk from somewhere online and got that up and running.

Any advice or pointing me in the proper direction would be greatly appreciated. I'm just coming back here after years away since i don't deal with HTC or Windows phones any more :)
Thanks Again!!
 
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