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Thread: Downgrading IPhone iOS to version 11 or 12

  1. #1

    Downgrading IPhone iOS to version 11 or 12

    My iPhone 6s has been a nightmare in terms of battery life. Itís on its second battery in 4 years and I am now contemplating getting another one as it switches off when the battery is full, randomly drops 20% etc.


    Is there an easy way of downgrading the iOS back to version 11 or 12?

    Currently running 13.1.3

    Thanks

  2. #2
    Master
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    Question :

    Was it Apple that fitted the replacement battery.?

    Take it into the Apple shop irrespective - they are quite helpful.


    B

  3. #3
    Master wileeeeeey's Avatar
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    It isn't possible ever to downgrade iOS. There are some exceptions for a week or two when the new iOS is out but after that -- never.

    Two batteries in 4 years isn't bad depending on usage -- they're set for 999 cycles. 4-5 hours or "screen-on time is the measure"

  4. #4
    Master
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    Take a look here - there are some instructions.

    https://www.macworld.co.uk/how-to/ap...os-12-3664217/

    you need to be quick though as Apple unsignes prior versions quite promptly
    Last edited by MartynJC (UK); 7th January 2020 at 23:03.

  5. #5
    Thanks - am heading to the Apple shop on Monday. It’s annoying because my battery health is at 84%
    Last edited by samswatch; 7th January 2020 at 23:27.

  6. #6
    Craftsman
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    They stopped singing IOS 12.4 in August so no joy downgrading now.

  7. #7
    So would it be worth replacing the battery and giving the phone another shot?

  8. #8
    Craftsman
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    I had a similar problem when I had a 6s, randomly switching off when charge fell below 30% or so. Had the battery replaced under the £25 deal which is obviously finished now. A new battery every 2 years or so I would consider reasonable and £49 fitted is a lot less expensive than a new phone.


    Sent from my iPhone using Tapatalk

  9. #9
    the apple shop will sort you out - id echo the battery is waaaay cheaper than a new phone - if it's doing what you need it for - and it's just battery - that can be sorted.

  10. #10
    Thanks - will give it a shot then

  11. #11
    Master Christian's Avatar
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    Quote Originally Posted by samswatch View Post
    Thanks - am heading to the Apple shop on Monday. Itís annoying because my battery health is at 84%
    Although 84% sounds like a high number, thatís threshold level for changing the battery anyway. You must have had 500+ cycles from that.

  12. #12
    Master
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    I have an old 6s I use as a bit of a burner. There is a bug pre-iPhone 7 where the battery indicator is exceptionally unreliable as I understand.

    Battery health 90% but it will drop like a stone and run for hours on 1%. Iíve tried all the resetting to no avail. Was similar on my 6 as well towards the end.

    The issue hasnít appeared on 7 or 8.

  13. #13
    Iíd say give another battery a try, but how long until the 6s loses support from Apple?


    Sent from my iPhone using Tapatalk

  14. #14
    Craftsman
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    Have you tried doing a restore of the current software, back it up then download and install new software and re-add the back up. It could be a power management problem.

  15. #15
    Quote Originally Posted by DiXoN View Post
    Have you tried doing a restore of the current software, back it up then download and install new software and re-add the back up. It could be a power management problem.
    No - but it’s something I should do. Do I just reset back to factory settings and check for an update? I guess I am not sure how to put on new software.
    Last edited by samswatch; 8th January 2020 at 22:46.

  16. #16
    Craftsman
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    Quote Originally Posted by samswatch View Post
    No - but itís something I should do. Do I just reset back to factory settings and check for an update? I guess I am not sure how to put on new software.
    Plug it into iTunes, you can still update handsets through it.

  17. #17
    Just to update the thread. I did a full restore to factory settings but no luck, so off to the Apple store to get a new battery.

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