I have an android galaxy s5. Ever since the newest update, I believe is 5.1.1, my battery drains during deep sleep. When I don't touch my phone at all for hours it will drain 30-40%. Android os and system use 20-30% power. I've turned everything off (wifi, data, sync, locations) and even set power saving on and it still happens. I did a system wipe partition cache and nothing. How do I fix this issue? Besides leaving it on a charger while not in use to manage. Thanks.