Update or Not to Update?

Discussion in 'iPhone 4S' started by NeoApple, Oct 5, 2015.

  1. NeoApple

    NeoApple New Member

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    Hello all,
    My nephew just gave me his iphone 4s last week (he just bought a new one). Anyway, his ... my 4s iphone is running on 5.1.1 iOS, it also was unlocked from AT&T to use on T-Mobile network, and jail broken. My question is does it worth updating it to the new iOS, and do I have to re-unlock it for it to work with T-Mobile. I understand that I still need to re jail-breaking it after any update. The reason I want to update is that I can't use the Facetime aps on the phone due to old version of iOS. Any suggestion or recommendation is very appreciated. Thank you all in advance. :)
     
  2. scifan57

    scifan57 Super Moderator Staff Member

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    If the unlock was done by AT&T, it's permanent and the iPhone won't re-lock if you update the iOS. The only iOS version that you can update to is iOS 9.0.2, which has no jailbreak. Updating is the only way to be able to use FaceTime, as you mentioned.
     
    Last edited: Oct 5, 2015
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  3. mesut

    mesut New Member

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    i have one IP4s, íts running 6.x.x iOS. Better you shouldn't update 9.X.X. It make your Ip4s lag and slow
     

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