Forum Question: Are There Any Big Performance Issues When Upgrading To iOS 5 On iPhone 3Gs?

Was wondering whether or not to upgrade my wifes OS on her 3Gs – I made the fatal mistake of upgrading my old 3G to OS 4 (i think) and it rendered it practiCally useless. I don’t want to do this upgrade and then have the issues in explaining to my better half why her phone is so slow and useless. Thanks
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Tim Noy

Comments: 5 Responses to “Are There Any Big Performance Issues When Upgrading To iOS 5 On iPhone 3Gs?”

    10/24/11 @ 6:19 pm

    Yes, it was a problem taking a 3G to iOS 4. But I have heard from several places that this is not the case with taking a 3Gs to iOS 5. I haven’t tried it myself, so I can’t speak from first-hand experience,mthough.

    John M. Hammer
    10/24/11 @ 8:10 pm

    The *only* downside I’ve noticed is very small: iOS 5 seems to use a bit more RAM than iOS 4 so you might notice some recently-used apps have to relaunch rather than come back instantly from their dormant background “multitasking” state. I’ve noticed this with the iPhone 4, too, but the 3GS has less RAM so it happens more frequently. This is *not* a reason to avoid the upgrade to iOS 5, which runs very nicely on the 3GS.

    Pedro
    10/24/11 @ 8:44 pm

    I had an upgrading issue: The progress bar stopped increasing. After I waited 30 minutes and it stayed frozen, I had to home + power button for 10 seconds.
    Then iTunes started restoring the phone software. When I noticed, it was already IOS5 updated.
    Then I waited for iTunes restore all application and it did it all correctly.

    I didn’t notice any difference on usage performance.

    Colin Smith
    10/24/11 @ 9:08 pm

    I upgraded my 3GS on the day and had no problems at all. I’m very happy.

    alec
    10/25/11 @ 5:09 am

    My 3GS works fine after the upgrade. It is a little bit slower if I have lots of apps ‘open’, but only slightly, and closing the apps completely cures this anyway. The only problem I have is that the ‘sync’ settings for Pages and Numbers keep switching themselves from ‘on’ to ‘off’. That’s probably something I’ve not got quite right on my iphone, rather than a 3GS issue though. Generally no problems.

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