iOS 10 battery drain / overheating

I'm using iPhone 6 since December 2014..from past 2 months my phone is getting heat and battery drains more fast also shutdown phone when the battery is still some percentage like with 40% battery itself its getting shutdown...kindly resolve this issue..

It's a runaway app.. If you reboot your phone it will close the app. I haven't had the problem come back. I'm keeping an eye on it.

I'm using an iPhone 6.

I've had this problem too and had my phone checked at the Apple store and they said it's not the battery but probably the software. Here are the steps I followed.

1- Backed up my phone and did a restore and then brought back my backed up data.

2- Same problem

3- Deleted lots of apps that I don't use and repeated above

4- Same problem

5- Restored phone as new - didn't restore anything backed up

6- Good until I used it to take some pictures this morning. Went from 77% to 21% - low battery- which to me meant it would shut off any minute based on past experience. Plugged it into the charger and it went back to 77%.

Was at the apple store the other day because I did the failed watch update and had them check my phone but couldn't do any diagnostics because it was restored as new. Why aren't they aware of all the problems that are posted online??

7- I'm going to restore my backup since it doesn't matter

8- I'm getting a good portable charger for Christmas so I don't have to worry about the weird power drain that really isn't.

Hi

I live in France and don't have an Apple Store where I live (just on official reseller, all hardware issues go through a subcontracted company). However I have some progress to report! I simply did a restore (as a new ipad) but going back to the earliest signed version of ios available a few weeks ago: 10.1 (14B72) which predated, by a week or so, my issues with the iPad. I reinstalled everything from scratch, taking care not to put back any apps I didn't use often, (note that I have never had less than 20GB free on my iPad Air 64GB, even before it started going wrong. (i.e. ipad went into recovery mode every time it should have simply gone into standby mode).

And happily, this seems to have fixed my issues. My battery consumption is normal, and it sleeps and wakes normally. It's only been two weeks, but my guess is that it was some sort of hardware driver glitch, preventing the processor from going into normal standby mode. Presumably there is a power management core within the A7 CPU, and this power management unit needs firmware to ensure that the standby modes are entered and exited properly. My best guess is that iOS 10.1.1 was not a good driver for my 2 year old iPad. If it relapses, without me updating my IOS, then I'll be pretty certain that something is borderline with my hardware. Until then, I will not update my IOS. The only casualty is Facebook...I'm not allowed to reinstall the app with 10.1. But I can definitely live without the Facebook app :-)

Good luck to everyone else, and do give your feedback on whether IOS 10.2 has fixed any of these power management issues.

I forgot to write this from above:

I also restarted my phone.....turning it off and then on again.

Same issue here with my iPhone 7. The culprit appears to be Siri Audio, even though I have Siri disabled. A restart of the phone temporarily resolves the issue, but typically only for a few days.

I suspect to have exactly the same problem on my iPad Pro... Found it 2 times going from 100% to ...0% after a few hours in standby. Removing the HUE widget seems to solve the problem...

I'm having the same issue. Is your email crashing repeatedly as well?

it disappoints me as fan of apple product. if the ios11 is not good enough, why stopping people from reverting back to ios10?

iPhone Overheating and Getting Hot Issue