Repeating myself: Help to install Marshmallow on my old Galaxies

[0rangecreme]

I think I may have posted the following in the wrong thread, so I am re-posting it here
(Here is the original post
https://forum.xda-developers.com/an...help-to-install-marshmallow-galaxies-t4103977

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Hello, First, I hope everyone is safe & sane.

Okay, so, I'm not sure if I'm in the right place, but I'm sure you'll let me know if I'm not.

I have 2 old galaxy phones - S3 mini (G730A) and S4 mini SGH-I257). The S4 is the one I actually plan to use. The S3 is the one I will experiment with, so that I don't mess up my S4.

Both phones are Kitkat versions (4.4.2) and I would like the S4 to be the marshmallow version. I read online that one could do this; it seems to be called side-loading.

To start, though, I'd like to make the S3 a marshmallow version, and if that goes well, I'll do the S4.

Can anyone point me in the correct direction on how to do this? What to download? Where to download it from? Etc.

Alright, I look forward to your reply. Thank you!
P.S. If you're wondering: the S4 mini is my phone of choice because of its small size - my mildly arthritic hands can handle this size much better than bigger phones. So if I can't accomplish this task, I'll just leave it as is; it is currently working fine. It would be nice to be able to use a few apps of interest to me, but I will do without them if need be.

 

[Galaxyninja66]

Okay dude, first off - I don't think you understand how roms works. It doesn't matter how stable any rom is on the S3 Mini, it isn't an S4 mini and that rom isn't reflective of the experience you will have on the S4 Mini. In a nutshell: it's apples to oranges.
Second, this is general. this belongs in Q/A. Literally a stickied title post says no questions in general.
Finally, I reccomend Cyanogenmod 13 or LOS 13 for the S4 Mini if you need MM. However, Lineage OS 15.1 (here: https://forum.xda-developers.com/galaxy-s4-mini/orig-development/rom-lineageos-15-0-s4-mini-t3702272) is running great on my phone better than MM, and now I'm getting 3 hours of SoT without even trying. I swear there was another thread for i9195 but i don't know.

 

[0rangecreme]

Thank you for your reply; but first, I should say that I am a "she" - so not a "dude". And, I do know that whatever I might do to my S3 I cannot do the exact same thing to my S4. I just want to start off with my S3 to see if the steps actually work. If they work, then I'll know how it all works and I can engage in the correct steps to my S4.

As far as this post being in "General", the system said that because I am new, I could only use General. I did post it somewhere else, as the beginning of my post says, but I did say that I wasn't sure if I was in the correct place -- this is not the easiest forum to navigate.

Thanks for the info and the link; I'll check it out.