Sometimes you need certain application to access some advanced info on how you phone works.
Apps such as GSAM Batter monitor or Wakelock Detector can use those permissions to help you get a better understanding of what’s happening with your phone.
Assuming you know how to use the adb tool, simply run this on a shell (any OS) to grant a package those permissions and avoid root-ing your device
adb -d shell pm grant com.package.name android.permission.BATTERY_STATS
Simply replace com.package.name with the formated name of your app, like com.uzumapps.wakelockdetector.noroot for WakeLock Detector.
Profit!
