After updating my phone to KitKat 4.4 (biggest regret ever), my battery life has literally been cut in half. When I check battery, most of it is consumed by Android Systems, and Android OS. I have literally tried everything to resolve this problem (including factory reset TWICE) and nothing has changed. I want the amazing battery life that the Note 3 is known for (which is a big reason why I got the phone in the first place) back. My phone is already down to 50% battery after about 6 hours and I have hardly even used it. If anyone knows how to resolve this problem, it would mean the world to me. I LOVED this phone when I first got it and still had 4.3 on it because everything ran perfectly and the battery lasted me a day and a half. It was something I NEVER had to worry about and now that's all I worry about because I am a little OCD when it comes to the battery life on my phone. Is there any way to trade this note 3 (doesn't have any damages) for a new one with 4.3, or downgrade it so I have 4.3 again because honestly 4.4 is not that big of a deal, and I really regret getting it.