i use redsn0w 0.9.5b5-3 and redsn0w 0.9.5b5-5 with firmware OS 4.0 for jailbroke but in last step my iphone not power on... and dead... update in itunes with 4.0.1 and work but not jailbroken and unlocked
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you can jailbreak 3gv4.0.1
use 4.0(not 4.0.1) ios to jailbreak wth redsn0w 0.9.5b5-5
after,add "sinfuliphonerepo.com" as source and download package and install
ultrasn0w.
Yes Yes Yes
My Iphone 3G iOS 4.0.1 (8A306) is jailbroken and Unlocked with Redsn0w 0.9.5B5-5 with selecting the iOS 4.0 and not 4.0.1.
I tried to select the iOS 4.0 but redsn0w was not recognizing the firmware. Selecting the iOS 4.0 firmware will jailbrake the Iphone 3G iOS 4.0.1