NOOB Questions Samsung SM-G900A

Hello,
I have been looking one source of solid information in this phone but seems to have too many conflicting opinions.
I have not rooted a phone before, but I'm comfortable following directions and taking things step by step. I have built many PCs, repaired laptops, installed OSs, even some analog cable and satellite "testing" in the past.
I have Nougat on my tablet and it looks pretty cool so far. I was wondering if I can root/mod and load Nougat on my phone. It seems that many places say YES, the Galaxy S5 can get Nougat. Only to find a note somewhere in the instructions that the SM-G900A is not supported, just about every other one is.

So......
Can I root this phone?
Can I put Nougat on it?

Is there really any benefit to doing either or would I just be wasting my time.

Can I go back to the stock AT&T software if I have issues?
If I do that will it go back to the ORIGINAL OS that was on it or back to the current version of Marshmallow that I have on it now?

Thanks, any suggestions are welcome.
Matt.

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by grace.willms
17 minutes ago
Last post by dorcas62
4 hours ago
Last post by rgoodwin
1 hour ago
Last post by kaleb40
3 hours ago
Last post by gertrude20
3 hours ago
Last post by bartoletti.richard
15 minutes ago
Last post by reichert.alexandro
4 hours ago