Reset All Settings and Reset Network Settings
then calibrated my battery. been great ever since
Do this at any time or does phone battery have to be full or empty to calibrate?
Is it normal my battery drained 12% in a couple hours and only uses text for about 5 minutes?
I'm having the same issues and I have literally everything turned off. 3d effect, email set to manual, background data off, screen to 20% in dark and yet I'm getting only about 5-5.30 hours out of the battery while being on wifi all day
I had a serious battery drain issue. Settings - General - Reset - Reset all settings fixed it.
Reset All Settings and Reset Network Settings