Now that Samsung has made the Windows Mobile 6.1 ROM upgrade official for the BlackJack II, I should take a minute and remind everyone about the post I made a while back that helps you to unlock the carrier networks settings. This is a new feature that was added to Windows Mobile 6.1 by special request of the carriers who are looking for ways to reduce support calls from people that toy around with the network settings and don’t know what they are doing.
Of course, anyone with a unlocked BlackJack II that is looking to use the phone on a different network will need to unlock these settings and modify them to match the settings for their carriers network.
You can read the original post with full details on how to remove the lock over here. And to everyone that’s upgrading, enjoy the new ROM and while you’re flashing your device, why not take on the No Reboot Challenge. What better time then right after a fresh and clean install of the OS.