i have had a jail-broken 3gs worked fine until you had to lock and unlock quick then it involved restarting the phone which i restored and it worked fine now my grandma is using it still no problems. my question is how to hack the 4s and some good FREE AND SAFE ways to go about this (since i dont want to mess up my pc or mess up my phone to where its usless) and should i do it now or later. and say if i did hack it now could i restore the phone and go about updating to the 6. also if i was to jailbreak it could i still keep my address book and all that stuff the same thanks for helping me out with this also is it just me or people on att have network problems when going into off network, and no service even if you had service 5min ago set my phone down and picked it up said no service had full before that. ---------- any good ways to change the apple logo lets say the cummins C logo. anybody had any issue with jailbreaking such as speed issue. i am thinking about doing this but could i still update to the ios6 when it comes out or am i stuck for good?