I am on Verizon Galaxy S5, 4.4.4 and have not rooted, and I am not being pestered to upgrade to Lollipop.
Try this for a while and see if it works for you also.
settings/app mgr/app/all
turn off, "config.updater" and "Samsung.update"
Make sure you check AutoDates is OFF
Make sure you check Updates via WiFi only.
Now, use WiFi at your own risk.... I have a couple of times, but usually I just use my DATA plan.... so far, I have not pushed it up to my 3 Gb limit/month. and that is with 4 of us using the Family Share Plan....
all of my family members are told to stick to WiFi, but they don't have Galaxy S5 phones.
that leaves me with the whole 3 gB enchilada
.
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2 ea. Verizon Galaxy S5, 4.4.4 forever!, ART
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