The iPhone dev team released the much awaited software solution to unlock iPhone 3G so that users can use any GSM carrier’s SIM, a perfect New Year gift for all those waiting to unlock their iPhone 3G.

Here is a detailed step-by-step guide to unlock iPhone 3G using Dev team’s yellowsn0w application.

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Some important points to note before we start:

* Hacking your iPhone could void its warranty.
* Dev team’s yellowsn0w application is still in beta and has not worked for all iPhone 3G users but they are working hard to fix the issues and have been releasing new versions of their application.
* Since one of the important requirements to unlock iPhone 3G is to upgrade to iPhone firmware 2.2 (as it exclusivley works with baseband firmware 02.28.00 which comes bundled with firmware 2.2), you need to be aware that iPhone firmware 2.2 breaks Turbo SIM (in case you are using it) – the hardware method to unlock iPhone 3G so if Dev team’s software method which is still in beta does not work you might not be able to use your iPhone 3G.
* This step-by-step guide is exclusively to unlock iPhone 3G. We haven’t tried it with the 1st generation iPhone. We would sugges you use QuickPwn to unlock the 1st gen iPhone.
* The current version of yellowsn0w does not support SIMs with PIN enabled. So please disable any PIN you may have on that SIM before using this guide. The Dev team are currently working to support SIMs with PIN so this is a temporary limitiation.
* If you want to know if Dev team’s unlocking solution has worked for your carrier, please check the Yellowsn0w report.