iPhone 11 Pro getting HOT

I have read through all posts and want to offer my 2 cents

My iphone 11 pro was normal until I started using the keynote app. It heated up real fast to a point that it is uncomfortably hot (within 1 min). Whenever I switch to other apps, the phone starts to cool. If I switch keynote on, phone starts cooking again. That’s obviously very weird, then I found this thread.

So following the discussion, I made sure my iOS is up to date on 13.1.1. Then I checked my “battery” tab in the settings, 10 min of using keynote consumed 15% battery, while the whole day of using other apps only make up 85%. Keynote is essential to me in my job, so deleting it is not an option. I also didn’t want to “reset all settings”. Instead, I closed settings>general>background app refresh. That totally fixed the problem

To sum up, here is what you can do if your phone is heating up abnormally

1. make sure it’s running the latest iOS
2. check which app consumed the most energy under settings>battery>battery usage by app, delete the problematic app if it’s not essential
3. close the “background refresh” of that app (check other battery saving tips online, it could be other tricks)
4. if none of the above worked, reset all setting (settings>general>reset>reset all settings)
5. still no luck, contact apple for replacement

[Edited by Moderator]