Ok, I'll start off by saying that I have searched around, but haven't been able to find a definitive and up-to-date answer. Either that, or I just didn't understand an answer because I know almost nothing about any of the technical jargon.
Here's my problem. I just got a new Sprint Note 4 and it unfortunately came with 5.1.1 already loaded, so I didn't have a choice. I've seen the difference between Lollipop and Kitkat (and read numerous complaints), so I know that I would definitely prefer to be running Kitkat. And if there's any way to downgrade for 4.4.4, I'd like to do it now while the phone is new so I wouldn't have to worry about backing up a lot of data.
Useful information: the phone is an SM-N910P and is on N910PVPU4COG5, which I believe is the latest version.
Is there currently any known method--non-root, rooting, flashing, going to 5.0 and then to 4.4.4, etc.--to downgrade a Sprint Note 4 on COG5 to Kitkat? And if so, where does a laymen like myself start?
Thanks a lot.