How to Downgrade Your iPhone 3GS, 3G Baseband for Unlock (Mac)

How to Downgrade Your iPhone 3GS, 3G Baseband for Unlock (Mac)

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Saad - January 23, 2014 at 3:14pm
i am using iphone 3G and it is not going to dfu mode and give some error on redsnow. I want to downgrade my baseband please guide me