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  1. #1

    Member Since
    Jun 03, 2010
    Selling iphone 4?

    I have an iphone 4 on contract with O2. If i gave my phone or sold it to someone else, would i need to unlock it or could they put any sim in it and use it as normal?

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Fort Worth, Texas
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, El Capitan
    You need to direct that question to O2 there in the UK. Here in the US they (with our current iPhone carriers) it's not necessary to unlock the phone first.

  3. #3

    Chuckoir's Avatar
    Member Since
    Sep 21, 2011
    London, Londonshire, England.
    13" Late 2011 MBP,iPad '3' 32gb,iPhone4 32gb
    You'd need to unlock it, if you were wanting to put anything other than an O2 sim card in.

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