My GS6 has what i consider to be a flaw. My location keeps going back to high accuracy, GPS, wifi and mobile networks after i put it in just wifi and mobile networks to save battery. When i notice my battery draining a little fast i go check and lo and behold, it is back in the high accuracy mode.
That bugs me.
My nexus 6 does this on occasion and I am unsure how to fix it. 5.1.1 fixes it