I am not one of the tech savvy people who understands everything about the firmware, software, the applications that run "secretly" in the background. It's all pretty mysterious to me. I wish someone could take the time to explain it all to me. Is there a way I can find someone to do that? I'd be willing to pay for their time and expertise! I've done research, watched tutorial videos, read message boards, and I still feel way out of my depth. I never felt the need to concern myself with any of this stuff BEFORE the horrendous Lollipop 5.0 "upgrade" but once I started experiencing that horrible battery drainage I tried to find any possible solution. In the process, I've been finding out just how much I really don't understand. Why are there so many things running in the background that I didn't open? When it comes to backing things up, I am confused because there are so many different ways, and different accounts (Samsung, Google, Cloud, etc.) and there isn't really ONE place that everything can be backed up to. It's so confusing.
I followed these instructions and was able to successfully downgrade my firmware to KitKat (I guess time will tell if my battery drainage issue is gone, now), and some of my backups worked and some didn't. I am confused as to why I am missing the last 2 weeks of my S Health data. I did a backup with Kies before I downgraded the firmware, and restored the data after the firmware downgrade was successful.