hello everyone sorry im a little new to this but my gf has a iphone 4 jailbroken and unlock with software 4.1x on SIMPLE MOBILE. data works fine but imessage doesnt activaste nor does facetime. so i was wondering if i updated it to 6.01 if that will help either that or 5.0x serieis. ... if so i heard i would have to preserve the baseband. can anyone give me some help on this?