When I first got the phone I swear there was a setting that showed me what was sucking battery arrows that would fill up with red if certain things were suing a lot of battery (like display light). I look under battery use on "about phone" and NOT it. That only lists 3 things and yeah lame. Did Sprint eat it?? I have checked everywhere!
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I have the red arrows for categories that are active, but I have noticed one strange thing. If I turn 4G on and then off, the Sprint Zone app stills shows 4G as connected in the power configuration. Closing Sprint Zone, or refreshing it doesn't change it. The only thing that does is rebooting the phone and then the red arrow is gone.