IOS 15.3.1 drain my iPhone 8 battery
Updated my iPhone 8 to IOS 15.3.1 yesterday and this morning found out the iphone battery was drained and shutdown. When I put it on charger and turned it on, the iphone show 10% of battery.
Then I charged the iphone battery to 100% and use it for couple of minutes, the iphone shut down again as if it is running out of battery. When I turned it back on again it show my battery from 100% to 10% and it's repeating the same thing every time. This mean I can't even use my iphone as it keep shutting down due to drained battery.
Is there any solution or I've to wait until the next ios update.
iPhone 8