Hello Everyone, I am currently looking to buy a used iPhone 6s. The prices are considerably cheaper for used ones that are almost new. Saving between £100-£200. However, I have a concern. A couple of years ago I bought an iPhone from this person. He got 2 in the post by accident from hi mobile network. Anyway, he decided not to tell them that he got 2, and sold the second one to me. The network soon realised and blocked my phone. So I lost money. I could only use the phone like an iPod now. I couldn't use a SIM card in it. How can I avoid this happening again? I am told that if I register the phones serial number on my "Apple Support Profile" or under my Apple ID then that can't happen. So if the person removed the device from his Apple ID and I added it to mine, online, that should protect from the same situation happening again! Is this correct? Just in case some people are not sure what the Apple Support profile is, here is a link https://idmsa.apple.com/IDMSWebAuth...URL=https://supportprofile.apple.com/homePage I would welcome some advice on this. Before you say it, I know buying privately is a risk and that I should buy direct from Apple, but I just want to minimise my risk thats all. Thank you.