Is there a untethered jailbreak and unlock out for iPhone 3GS 4.2.1 with baseband...

[tony 2]

...05.15.04? How's bluesn0w..?? I know greenpoison didn't wrk. And redsnow 9.6 beta watever didnt wrk either

 

[Unregistered]

You can do it in the latest OS....I suggest you can approach Mobile-unlocker.com and specify the country,locked network of iPhone3GS.Based on the availability you can get the permanent unlock code along with free instructions.To jailbreak visit Jailbreakiphone4sim.com