The 4S behaves just fine with IOS 9.3.1. IOS 8 had some performance 
issues on older phones, but this was resolved in subsequent versions of 
IOS 8. IOS 9 was refactored specifically to work well on phones with 
older processors and less memory, so it runs just fine on a 4S, although 
a 4S will never be as snappy as a newer phone.

Restoring to factory settings will not roll back you're version of IOS. 
You'll get the latest IOS when you do this.

You might want to check your VoiceOver language settings to make sure 
you're using the enhanced voice after the upgrade.

On 03/04/16 19:41, Jim Hamilton wrote:
> Duane:
>
> Well, I just installed IOS 9.31 on my iPhone 6S.  It Voice-over works just
> fine.  Perhaps, this upgrade was not intended for some of the older phones.  I
> remember that my iPhone 4S had problems, really slowing down, after upgrading
> to IOS 8.2 (I think); so, I stopped upgrading that phone after that.
>
> Unfortunately, unless you are willing to take the iPhone 5 back to factory
> settings, I do not believe that you can go back to the previous IOS version
> before you upgraded to 9.31.  When my 4S slowed down, I was given that unhappy
> news by Apple, and I had to live with it until I could afford to upgrade the
> phone itself.
>
> Perhaps, someone else will have more positive news, or, has developed a way to
> go back to a previous IOS version.
>
> Do let us know if the problem gets resolved, in whatever manner.  Good luck.
>
> Jim H
>
> -----Original Message-----
> From: Visually Impaired Computer Users' Group List
> [mailto:[log in to unmask]] On Behalf Of Duane Farrar
> Sent: Sunday, April 3, 2016 7:52 PM
> To: [log in to unmask]
> Subject: [VICUG-L] Voiceover sounds garbled after installing IOS 9.3.1
>
> Hi All,
>
> I have an iPhone 5 and installed the IOS 9.3.1 update. After doing so,
> the Voiceover speech sounds garbled and fuzzy. However, Siri sounds fine
> as do the podcasts I have listened to so far. I have tried shutting down
> and rebooting the phone, but the speech is still not clear. As yet, I
> have not been able to figure out anything by browsing through the
> various settings. Has this happened to anyone else? I am open to all
> suggestions.
>
> Thanks,
> Duane
>
>
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>
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-- 
Christopher (CJ)
chaltain at Gmail


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