? 3Gs unlock with 05.15.04 baseband?

[Whatsagirltodo]

My 3Gs is running 4.3 firmware and has 05.15.04 baseband. How can I unlock it? I am so new at all this but I did manage to jailbreak it and I thought ultrasn0w would unlock it but the baseband stopped that. What can I do? I am desperate. Please email me and let me know of any suggestions. Also, I am an idiot when it comes to this stuff so please use easy words. lol Thanks in advance. [email protected]

 

[Jmills87]

You would have to first update your baseband to 06.15.00 since your current baseband is not unlockable and then you would need to jailbreak and install ultrasn0w to unlock.