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Upgrade iPhone 3GS from iOS 4.2.1 to 4.3.x [closed]

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By User



Hi folks I have a iPhone 3GS at 4.2.1 and want to upgrade it to 4.3.x for testing. I have read some articles about it but it seems that those are too old and cannot work.





Does anyone have some experience in doing this or does apple provide tutorials for developers in this?





A lot of thanks.


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Comments

  1. Tips For AllMarch 1, 2012 at 9:39 AM

    iPhone 3GS is supported by the current iOS, which is 5.0.1. You can update to that just by connecting the phone to iTunes and clicking "Update".

    You can't update to any other version but the latest. (Well, not in any officially supported capacity. It might be possible with jailbreak tools but I don't traffic in those.)

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