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Thread: Help unlocking Iphone 3gs 4.2.1 05.15.04

  1. #1
    Default Help unlocking Iphone 3gs 4.2.1 05.15.04
    Hello all - I hope someone here can give me some advice.

    I have an iPhone 3GS 32GB I purchased second hand. It came with IOS 4.2.1 and baseband 05.15.04. The phone is currently locked to O2 but I would like to use my Orange sim card in it so I read that it would need to be jailbroken before I could unlock

    I proceeded to jailbreak it using greenpoison and installed cydia to allow me to install ultrasnow 1.2.3. When I then inserted a non O2 sim card I wasn’t able to get any service,
    and received a message the phone was activating and this may take some time. I left it a while but still couldn’t get any service.

    I subsequently read that this baseband needs to be upgraded to the iPad baseband 06.15 before ultrasnow would unlock the phone.

    What I’d like to know is what can I do now? – I just need the phone unlocked so I can use my Orange sim card.



  2. #2
    05.15.04 baseband cannot be unlocked. Your best bet is to call O2 and ask them to unlock it (this is an IMEI unlock). If you have a friend with an O2 account you may have better luck.

  3. #3
    Thanks for replying so quickly.

    I will contact 02 today - just hoping there is no cost associated with this. The person I bought the phone off has paid off thier contract I suppose I shouold be entitled to get the phone unlocked for free by 02.

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