iPhone 4s iOS 9.3.4 slow and hot

Discussion in 'iOS 9' started by la321, Aug 4, 2016.

  1. la321 macrumors member

    Joined:
    Aug 27, 2012
    #1
    I no longer have my iPhone 4s. I have an iPhone SE now but I updated my 4s to 9.3.4 from iOS 6 to see how it would be. The phone is warm and slow. Is there a way to fix? I tried reset settings.
     
  2. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    Unfortunately not. The newer operating systems won't run that well on older hardware. They just don't have the beans to run it smoothly. The CPU will be maxed just to support the simplest animations, which is why it'll be getting a little toasty too.

    iOS 7 killed my little iPhone 4. It was utterly unusable on that. If you've ever seen Wrath of Khan, I was in two minds whether to do a 'Spock's funeral' scenario for it. Unfortunately I didn't have an Enterprise or a newly terraformed Genesis planet to hand, so I did the next best thing and bought a 5S instead.
     
  3. C DM, Aug 4, 2016
    Last edited: Aug 4, 2016

    C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #3
    Sounds like probably some background work is going on since you went from iOS 6 to 9 which is a considerable jump, or potentially some process is stuck somewhere. I'd give it some more time, or alternatively, if that doesn't help, try to re-install (since you tried resetting all settings). The experience might be somewhat slower compared to iOS 6, but at the very least the phone shouldn't just be heating up randomly.
     
  4. Relentless Power macrumors P6

    Relentless Power

    Joined:
    Jul 12, 2016
    #4
    These older iPhones struggle with the newer updates, being they require more CPU/GPU Power and they greatly affect the battery consumption, maxing out the iPhone's power.

    Doubtful the phone will improve. I'm not sure if you are able to downgrade the update.
     
  5. Shirasaki macrumors 603

    Shirasaki

    Joined:
    May 16, 2015
    #5
    Downgrade is already unavailable for iPhone 4s
     
  6. M. Gustave macrumors 68000

    M. Gustave

    Joined:
    Jun 6, 2015
    Location:
    Grand Budapest Hotel
    #6
    It's warm just idling at the home screen?

    I have two 4s on 9.3.3, I haven't updated yet, and they're far from speedy, but they don't get warm just using the OS.
     
  7. Saffy66 macrumors newbie

    Saffy66

    Joined:
    Sep 27, 2014
    Location:
    NSW, Australia
    #7
    9.3.3 is the latest update available here, and I read it's the last one for the 4s. So if 9.3.4 is on your phone, it wasn't meant for it. My 4s started to get "laggy" around 8.4 so 8.4.1 is the last one I downloaded.
     
  8. M. Gustave macrumors 68000

    M. Gustave

    Joined:
    Jun 6, 2015
    Location:
    Grand Budapest Hotel
    #8
    Wrong. 9.3.4 is definitely available for the 4s.
     
  9. C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #9
    iOS 9.3.4 should be available for all devices that support iOS 9 (which includes iPhone 4s).
     
  10. iRoRo macrumors regular

    iRoRo

    Joined:
    Oct 29, 2013
    Location:
    UK
    #10
    Hmm, one thing I did notice is, when I initially checked for an OTA update, there was no update available on my 4s but, on the second check there was an update. Perhaps doing as I did will get the update on the 4s.
     

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