I'm in the market for a new iPhone as mine is a 4S and the battery is awful on iOS7 and I'm loving what iOS8 looks like. I recently had to replace the wife's phone as it was broken by our wee one who dropped it on a wooden floor. This got me thinking.... If i buy a broken one off ebay and use the same 'out of warranty replacement (it was £120 or there a bouts replacing the wife's) it would work out cheaper than buying a new phone outright. Is there a way I can be sure that the phone I buy (which doesn't work) isn't stolen or dodgy in some way? I'd love a new phone, but can't afford the outright costs, but I'm not wanting to do anything illegal as I know how annoyed I would be if my phone was stolen.