3g with 4.0 jb + unlocked but no sim issue ??

[foreveraudio]

i have iphone 3g here, jailbroke it with redsnow, and unlocked it with ultrasnow but keeps saying no sim anyways ?
help ?
baseband is 5.14.02 if that makes a difference which i see in snowbreeze doesnt list it as being supported
i just need to get it unlocked and im done with this one, thanks all
im online , respond fast, thanks

[eyeRobot]

baseband 5.14.02 is not unlockable and it's not possible to downgrade it at present.