Updated to iOS 11.3 2 weeks ago, 3 days ago, suddenly, Touch id not working and battery drain super fast. 100% at 10pm, when wake up in morning, auto shutdown the phone. and the phone feels warmer while using it, battery drop super fast. Factory reset the phone without any 3rd parties apps, battery still bad. Battery health indicate 88%. If it is due to hardware problem , motherboard or ...