Flaw detection is to detect closed eyes or blur in pics. This notification is independent of flaw detection. This is to periodically remind you to clean your lens. I receive these reminders inspite of a clean lens. So ¯\_(ツ)_/¯
Charging speeds are determined by the hardware in your phone and the charger. Your phone doesn't have the required hardware to support faster speeds than the 15W included charger and 25W fast charging cannot be enabled via software update without the...