HOW TO DOWNGRADE IPHONE 3G 4.0 FIRMWARE TO 3.1.2 FIRMWARE AND UNLOCK



Hey in this tutorial I’ll be showing you how to downgrade the iphone 3g 4.0 OS Firmware to 3.1.2 firmware. I’ll also show you how to unlock your phone. 😉

Download iPhone Firmware:

Download Blackra1n:
http://www.blackra1n.com

Ultrasn0w Source for Unlocking iPhone:
repo666.ultrasn0w.com
(Remember that the “0” in snow, is a zero, not a letter.)

Keep in mind, your doing this on your own risk. I AM NOT Responsible for any mistakes that you do during this process. If you follow what I did correctly, you shouldn’t have any problems. Thanks for watching! .

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