I'm have an iphone 3gs version 4.1 JAILBROKEN and unlocked(network T-Mobile), I'm trying to upgrade it to ios 5 using sn0wbreeze; I want to leave it jailbroken AND keep it on T-Mobile. When selecting a mode it says all modes still preserve the baseband. I want to keep mine unlocked/jailbroken/t-mobile. So, do I do simple mode or baseband preservation mode? I'm watching a video it says baseband preservation won't leave it jailbroken. Please help.