EDIT: SIM-Lock on JI6 has been solved for me with helroz's repair_nv_data.zip, read further along...
Page 11, Post 103 has a good copy of the instructions (but read the whole thread)
Also, heres a link to the corresponding thread in the Captivate forums
Can someone who has had Tmobile US for at least 40 days put a request in for an unlock code for my Vibrant? I only have ATT and no friends with Tmo. The Tmobile unlock team already refused my request. You would just need to call Customer Service, ask for the unlock team. I tried all the solutions in the forums - I have a messed up nv_data (bought it on craigslist). Shoot me a PM if your willing to help. Thanks in advance.