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Jegajothy vythilingamFlag for United States of America

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Apple iPhone - firmware

I have an iPhone 3G but had just terminated my carrier, AT&T.  How do I find out what version of firmware that I have on my phone.  I am trying to use Jailbreakme to unlock my iPhone. Thank u.
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Martin Liss
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dmwynne
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You will probably also need this at some stage Where to download old firmware versions.
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In response to dabid73, my firmware is 5.15.04.  So which firmware should I download, where I can then use the jailbreak. Thank u.
Sorry I seem to have told you something incorrect in my post.  That wizard says no unlock for your baseband, but there is.

Here is the step by step instructions.
thank u for the answer. well done.