Unlock iPhone 3GS to go from ATT to another carrier

[smckinniss27]

http://www.iphoneforums.net/forum/h...jailbreak-ios5-using-redsn0w-beginners-25943/

This link also helped very much! Explains step by step on what to do to jailbreak your phone. I youtubed for the rest

 

[iMarilina]

Wait don't lock the thread! I want to do basically the exact same thing (3gs from ATT to cincinnati bell). But the phone is a take home from work and has no service. Will everything still work the same? I need to install itunes on my computer and download redsnow and run it as above. Do I need to do anything different because the phone has no service? Sorry to hijack the thread. Thanks for the help.

p.s. the phone is 5.0.1 and 05.16.05 modem firmware

Same thing hun! And let us know if all is ok.