edit: if you are on froyo 2.2 then there are no current workarounds. If you are on JH7 then follow the directions on this post http://forum.xda-developers.com/showthread.php?t=789888&page=3
YouTube - How to Unlock Your Samsung Captivate (AT&T) for FREE
Even easier: Search market for "Captivate Unlocker"and download the free app by gentoo boy
Easiest way yet:
Download this, unzip, and run the .BAT file while the Captivate is plugged into the computer, Debugging enabled
http://dl.dropbox.com/u/30367/Generate_Code.zip
from:
[PROGRAM]One Click Unlock / All Models (Mac & PC) - xda-developers
This harder way also confirmed to work:
Official unlock thread: Bell Canada - Samsung Galaxy S "Vibrant" NAM 3G
YouTube - How to Unlock Your Samsung Captivate (AT&T) for FREE
Even easier: Search market for "Captivate Unlocker"and download the free app by gentoo boy
Easiest way yet:
Download this, unzip, and run the .BAT file while the Captivate is plugged into the computer, Debugging enabled
http://dl.dropbox.com/u/30367/Generate_Code.zip
from:
[PROGRAM]One Click Unlock / All Models (Mac & PC) - xda-developers
This harder way also confirmed to work:
Code:
cd /dev/block <enter>
su <enter> <at this point your phone will ask for superuser access ALLOW it
dd if=/dev/block/bml3 of=/sdcard/bml3.bak <enter>
do that to your rooted phone in ADB
Then just open the file with a hex editor, and SHAZAM! your code is there,
Around line 515040
Official unlock thread: Bell Canada - Samsung Galaxy S "Vibrant" NAM 3G