After manually update to oreo battery discharge very fast on A5 2017 region XSG (UAE) 🇦🇪 WHY SAMSUNG WHY ??? On Android 7.0 Nougat my battery last for almost 2 days & now 12-13 hours what kind of bug is causing this ??? Is any chance to roll back to 7.0 (Nougat) or I need to delete all stuff from phone & install 7.0 manually ??? I DON'T NEED OREO IF DRAIN MY BATTERY RAPIDLY !!!