Buying a second-hand iPhone
What should a person look out for to make sure that it doesn't turn into a brick after it's first update ?
I have seen countless posts in the communities about people who have bought second-hand iPhones and iPads which have turned into expensive paper weights when the iOS is updated. Most of these were because the phone had been jail-broken or hacked in some way to give the appearance of being a genuine unlocked device. Some are really stolen devices where updating the iOS leads to activation problems with unknown ( to the buyer) user-ids actually "owning" the device.
How can a buyer make sure that they are not being ripped off ?
What are the signs that you can look for at the point of sale - before you hand over the money ?
Maybe something in the "Tips" section would be helpful to a lot of people.