Discuss Iphone 3g 3.1.3 at the iPhone 3G - Hackint0sh.org; ...
iLiberty is not designed for 3G iPhones - it is a general rule that any 2G jailbreaking or unlocking tools will either simply not work or potentially permanantly damage your 3G or 3GS iPhone.
Originally Posted by gradisgay
Does iTunes recognise the iPhone when it has a black screen (Black screen is normal for DFU mode)?
There are safer ways to get into DFU mode with a broken home or power button - they require you use pwnagetool and specially made IPSW. There is a thread about it here http://www.hackint0sh.org/f206/80193.htm
As of today there is no unlock for a 3.1.3 3G iPhone - your only chance is fuzzyband downgrader.
Please read the stickies & search forum before posting! How to report an iTunes restore/update fail in a useful manner
iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter
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