Steps after buying a used iPhone 6
I'm buying a used iPhone. What steps should I take immediately after I receive the iPhone, to make sure that everything is OK, that I got what I paid for, and that I'm not receiving a lemon?
For instance, it might be nice to check that it wasn't reported stolen / blacklisted. Also, I am buying a factory unlocked phone, so it'd be useful if there is an easy way to check to make sure I am receiving an unlocked iPhone. Also, if there is any hardware that is frequently broken / not working on used devices, it might be useful to have a checklist for checking that hardware.
iPhone 6, iOS 8.1.2