Step 3.

　　Press Settings, then turn Airplane Mode off. Put in your SIM(s) and test them. Some have said no carrier signal was present at this point. Not a problem, click the link below and continue on to soft upgrading to 1.1.3 firmware.

　　Note: iPhone owners who have service contracts.

　　I received some email about unlocking an iPhone but using it with a legitimate contract (nothing of which I know anything about as all my iPhones are non-contracted and unlocked). Give this a read:

　　When the iPhone is activated with AT&T via iTunes, iTunes changes something in the lockdownd. Because of this, unlocking with any method does not work (also Geo's). The lockdownd file has to be replaced and then it works.
　　Launch WinSCP (or Fugu) and enter the IP address of the iPhone with username "root" and password "alpine".
　　Navigate to the /usr/libexec folder.
　　Rename the file lockdownd to backuplockdownd112
　　Go to this link, and download a lockdownd file for 1.1.2   http://www.unlockthatiphone.com/lockdownd112.zip
　　Decompress this file and upload the lockdownd file in to the /usr/libexec folder.
　　Right click on the file once it is in the folder and set its octal properties to 0555.
　　Restart the iPhone.

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