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Thread: If I upgrade to 02 firmware, will my 02 sim work?

  1. #1
    Default If I upgrade to 02 firmware, will my 02 sim work?
    I was just wondering, perhaps the at&t guys know this....

    I've unlocked an att phone for use in the uk, and i'm on o2. When the o2 phone is released, and if i choose to upgrade to their firmware, will my existing 02 sim card work. Have at&t users been able to drop a existing at&t sim card in their iphone before/after activation, or does it need to be activated.

    If it is activated using ibrickr or independence, will a different at&t sim card work, without unlocking it?

    I understand that going on the o2 firmware would lock it, but i can deal with that, if it means dropping my existing sim card without subscribing to another 18 months!

  2. #2
    Former Owner / Founder of ModMyi Kyle Matthews's Avatar
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    No way to know yet.

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  3. #3
    Quote Originally Posted by poetic_folly View Post
    No way to know yet.
    best answer i have seen so far yet. too many asking the same question again and again

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