I'm looking to sell my iPhone 4S. It's in great condition and is jailbroken with the Evasion ios 6 jailbreak. I figure I can sell it for more since the jailbreak can be viewed by some as very valuable. My questions are - 1) how do I make sure all my info is off the phone considering I can't clean restore the phone? 2) would the buyer be able to change the number to the phone easily? 3) how much is a jailbroken iPhone 4S go for, I see $300-400 on Craigslist.