iPhone X Battery Drain Due To *UNUSED* Flashlight

Normally I get a full day (16-18 hours) of moderate use from my iPhone X before dropping below 10% of charge; even with heavy use I get 10-12 hours.

I cant recall what day last week I updated to 11.2, but the first couple days I noted my phone was noticeably warm out of my pocket, and i was on the charger by early evening; the past two days my phone has been downright hot, and I’m down to 50% after barely five hours.

I checked Battery Use, both days, and noted the Flashlight was the number two abuser yesterday at 26% (I failed to check 7 day), and today it is pushing 30%, and showing 5% for the week.

The thing is, I’ve not used the flashlight in at least two weeks.

Yesterday, and again today, I did toggle it on and off briefly to see if the heat would abate; after 15 minutes, it was still hot. Yesterday I merely restarted to see if it would abate; today I force quit all open apps, restarted, the hard reset and yet the battery kept falling with radios turned off *and* in Low Power mode.

Theres a thread over at Reddit with several users reporting essentially the same thing (https://www.reddit.com/r/iphone/comments/7iue4g/iphone_x_flashlight_usage_overni ght/),and a search turned up some vaguely similar issues for iOS 9 and10.

Anyone else?

I’m really not in the mood to reset and restore; it’s a 256GB chock full and my restore host Mac only has USB 2.0. It takes several hours to complete.

I wish Apple would allow us to reset the battery log from a cold restart so we could check for entries of apps that were either unreasonably high, or, in this case, never used at all. It would be a fast way to confirm an issue like this.