check offical unlock before upgrate 3.0.1 to 4.x and how
i'm not sure how to proceed, so i need some help and advice!
my 3gs is still on 3.0.1, with the old bootrom and more than 2 years old, so i could offical unlock the phone via itunes over telekom online service.
i now wanna know if the offical unlock was successfully cause then i can upgrade to the current ios without any hussle and cogitations.
if the offical unlock wasn't successfully i also want to upgrade to the highest ios possible, but then i need to jb and unlock again.
so what's the easiest and safe way for me, to 1. check if the offical unlock was successfully and if not, how to upgrade to which (the highest & most stable) ios?
i'm on mac, so is pwnage the choice 4 me?
any help would be very very helpful!!!
thx alot and kind regards