Its extremely hard to sell an iphone you stole, as the person you sell it to will back track the purchase to your location through the IMEI number thats locked to the device.
In other words the iphone is worthless
that shit wont work when it was logged in with an iTunes account and passcode. Even if there's no passcode, after the restore phone would ask the password of the old iTunes account to logout.
>you can erase it, but when you try to set it up as your new phone, it will still be registered to its previous owner
Don't listen to this faggot.
You just need to do a full erase.
About 3-4 minutes in the microwave should do the trick.