I have an iPhone 7 and have noticed thar after recent updates that the phone is using a substantial amount of power when switched off.
It uses about 4% per hour when on (I can live with that) and the same when powered off using the slider switch. All the battery parameters in settings show the battery is good with 98% max capacity and running at peak performance. None of my apps show any signs of excessive battery consumption in the settings battery screen.
I have tried numerous resets including DFU, innumerable settings options and various other tweaks and nothing works. Many online suggestions have been tried including the music app issue.
I had an online session with Apple and after an hour they suggested I get genius appointment at my local store as the couldn’t see anything wrong. You guessed it, that was a waste of time as well. Their only suggestion was to PX the phone for a later model.
Any help appreciated.