iphone 3g activation

[hetrogeneous]

I have a iphone 3g(locked), which i updated to 4.1 and baseband 05.12.07.
After using many jailbreak and unlock tools such as redsnow,snowbreeze,tinyumbrella,pwnage tool but cant activate my phone and shows connect to itunes logo.Plz help in activating my iphonw w/o sim card since I dont have the original sim card.

[bondkt]

that baseband version does not exist, i think your mistaken.

in pt or sn0wbreeze tell it to activate the iphone, then use that custom fw after putting device in pnwed DFU mode.