If u have xsim you can use it for activation i have xsim with me all the time just in case i needed activation its simple than gevey just enter imsi activate end of story
Also if u used search u will find that one of the users reported that he jailbraked iphone 4s with redsn0w dev version. Working or not i dont know i never tested cuz i didnt needed it
So find out and post results |