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Message: <blockquote data-quote="Christian" data-source="post: 2772786" data-attributes="member: 219360"><p>Before T-Mobile supported the iphone, I bought an unlocked and jailbroken iPhone 4. I'm pretty sure that the original carrier was ATT&T if that matters. Do to the unlock and jailbrake, I am stuck on iOS 5.1, and I would really like to update my software. However, if I update it, I will lose the update and the jailbrake. My question is, since T-Mobile now supports the iPhone, including iPhone 4, is it possible that I could update its software and still be able to have service with T-Mobile? Thanks in advance.</p></blockquote><p></p>