craiglist people.

me: hi do you still have your (whatever i'm looking for -- in this case an iPhone)?

craiglist person: yes

me: do you know what firmware it's on (has to be a certain firmware for me to unlock&jailbreak)?

craiglist person: no

-- so do you want to try and sell it to me? firmware is in the settings of the phone ... but you don't know what it is ... so you're too lazy to go look it up for someone who is willing to buy it ... are you stupid?