LeeS7237
Level 1 (0 points)

Q: iPhone 5S getting incredibly hot and high battery usage after iOS 8 update

Hey everyone,
This is the first problem I have ever had with my iPhone.

 

I own an iPhone 5s and updated to iOS 8 late last night, my phone was fully charged this morning and is now down to 42% after only 1 Hour 37 Minutes of usage...

 

My battery life could last me a whole day (anything between 6 and 9 hours usage time), so this is a huge issue.

 

I have also had to remove my iPhone from its case and even turn it off in order to let it cool down, it got hot enough to feel through the case.

 

I am extremely disappointed as I was looking forward to the iOS 8 update,
and now all I am encountering.

 

Any suggestions is issues.or advice?

iPhone 5s, iOS 8, Public Release.

Posted on Sep 18, 2014 3:53 AM

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LeeS7237

Q: iPhone 5S getting incredibly hot and high battery usage after iOS 8 update

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  • by LeeS7237,

    LeeS7237 LeeS7237 Sep 19, 2014 2:30 AM in response to killhippie
    Level 1 (0 points)
    Sep 19, 2014 2:30 AM in response to killhippie

    thank you for replying killhippie,
    I have tried the soft reboot and am still having the same issues.'

     

    I'd prefer not to re-install, because that shouldn't have to be the case after installing the software,, but if Apple provides no solution, then I may have to.

  • by azsharom,

    azsharom azsharom Sep 19, 2014 3:41 AM in response to LeeS7237
    Level 1 (4 points)
    Mac OS X
    Sep 19, 2014 3:41 AM in response to LeeS7237

    My top battery usage is 'Messages (background activity)', or words to that effect at 25%... makes me wonder if under iOS8 there isn't some sort of re-indexing with the cloud that's taking place which is causing excessive activity...

     

    If I can think back to my earlier new iOS experiences, I think it did feel like it took a 'day or two to settle down' - so, hopefully over the weekend I/we'll see things going back to normal.

     

    Or else... let's hope for a quick iOS 8.01 release!

  • by LeeS7237,

    LeeS7237 LeeS7237 Sep 19, 2014 6:37 AM in response to azsharom
    Level 1 (0 points)
    Sep 19, 2014 6:37 AM in response to azsharom

    Really? Messages?
    Messages is pretty low on my list?

     

    Fancy sharing your list? or at least the top 3?
    Maybe they did, well that's because when iOS 7 came out iOS 7.0.1 came out the day after followed by iOS 7.0.2 a week (7 days later).

     

    So I'm hoping iOS 8.0.1 and possibly 8.0.2 will come out within the next week.

     

    It's just worrying at the moment.

     

    I also did some research and it looks like there was battery usage issues in the beta tests including the final GM version of which is what the public release was based on.

     

    So let's just hope Apple will sort something soon.

  • by wegras,Helpful

    wegras wegras Sep 19, 2014 8:13 AM in response to LeeS7237
    Level 6 (15,194 points)
    Wireless
    Sep 19, 2014 8:13 AM in response to LeeS7237
    I'd prefer not to re-install, because that shouldn't have to be the case after installing the software,, but if Apple provides no solution, then I may have to.

     

    If you used an over the air update  to iOS8 a restore is exactly what you should do

    It will install a full fresh installation of iOS8 rather than a "patch"

  • by LeeS7237,

    LeeS7237 LeeS7237 Sep 19, 2014 8:25 AM in response to wegras
    Level 1 (0 points)
    Sep 19, 2014 8:25 AM in response to wegras

    Thanks for replying Peter, but what about those who installed iOS 8 via iTunes?

  • by killhippie,Helpful

    killhippie killhippie Sep 19, 2014 8:54 AM in response to LeeS7237
    Level 3 (852 points)
    Mac App Store
    Sep 19, 2014 8:54 AM in response to LeeS7237

    A lot can go wrong with an install, especially an OTA one. iTunes will pull down the full version, sometimes no matter what it can go wrong as there are a lot of system files to replace. Its always best to have no apps running in the background, have the device plugged in as well. I'm not sure its an Apple specific issues, this crops up a lot when a new OS comes along. It sounds like a runaway process, and maybe caused by a corrupt install. Next step is to try a clean install. Since not everyone's phone has this issue its more likely to be a corrupt install. If your phone behaves after a clean install then don't restore it from a backup and start from fresh.

  • by LeeS7237,

    LeeS7237 LeeS7237 Sep 19, 2014 8:57 AM in response to killhippie
    Level 1 (0 points)
    Sep 19, 2014 8:57 AM in response to killhippie

    Okay killhippie,

     

    I will do this now followed by a report back here; if the others here could do the same and give feedback, that would be great.

  • by wegras,

    wegras wegras Sep 19, 2014 9:04 AM in response to LeeS7237
    Level 6 (15,194 points)
    Wireless
    Sep 19, 2014 9:04 AM in response to LeeS7237

    I can only assume you are not a Windows user then, anything can go wrong  with MS Windows and usually does

    iOS can have the same issues

    I updated 5 x iOS devices to iOS 8 all over the air and all faultless ,to my surprise

  • by LeeS7237,

    LeeS7237 LeeS7237 Sep 19, 2014 9:14 AM in response to wegras
    Level 1 (0 points)
    Sep 19, 2014 9:14 AM in response to wegras

    I am, that might explain it then.

     

    I'm waiting on a call from my partner, but after that I will try installing again

     

    Thank you both for being so helpful.

     

    Others that I know are still having the issues even though the did it over air (WiFi); that's why I chose the iTunes install option.

  • by Giuseppe Schirru,

    Giuseppe Schirru Giuseppe Schirru Sep 19, 2014 11:37 AM in response to LeeS7237
    Level 1 (0 points)
    Sep 19, 2014 11:37 AM in response to LeeS7237

    Turn off HANDOFF

  • by LeeS7237,

    LeeS7237 LeeS7237 Sep 19, 2014 11:54 AM in response to Giuseppe Schirru
    Level 1 (0 points)
    Sep 19, 2014 11:54 AM in response to Giuseppe Schirru

    HandOff has been off since the install, I turned it off immediately.

     

    Also, just to update everyone else, i have restored my iPhone and am still having the same issues...

     

    looks like we/I may just have to wait for Apple.

  • by wegras,

    wegras wegras Sep 19, 2014 1:52 PM in response to LeeS7237
    Level 6 (15,194 points)
    Wireless
    Sep 19, 2014 1:52 PM in response to LeeS7237

    take it to an Apple store genius bar and get them to look at it ,it should be in warranty still or a couple of days out

  • by Pablo Poch,

    Pablo Poch Pablo Poch Sep 19, 2014 11:15 PM in response to raymond73
    Level 1 (25 points)
    Sep 19, 2014 11:15 PM in response to raymond73

    Same issue. Fast battery drain, and hot iPhone. Some process is using the CPU a lot after updating to iOS 8. Battery usage shows Mail and lock screen as the most used battery, with 34% and 16% respectively. Even having the mail app not running. Apple iOS 8 should give a fast solution to this issue in a short time. It is really eating battery abnormally.

  • by Avneesh Mishra,

    Avneesh Mishra Avneesh Mishra Sep 19, 2014 11:24 PM in response to LeeS7237
    Level 1 (10 points)
    Sep 19, 2014 11:24 PM in response to LeeS7237

    Did you try resetting your device ??? Just press the home and power button as long as the screen goes off, then again boot up... This may fix the problem

  • by azsharom,

    azsharom azsharom Sep 20, 2014 12:49 AM in response to Avneesh Mishra
    Level 1 (4 points)
    Mac OS X
    Sep 20, 2014 12:49 AM in response to Avneesh Mishra

    thanks did that already but no luck.

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