Can you replace an bad esn iphone 4?

I was planning to buy a bad esn iphone 4 on ebay that still have apple care warrenty, anyways will they care if it has bad esn because i will just tell them the phone has a problem and try to get it replaced will they do it or deny me?

NO, apple will NOT care… I don't believe you understand just exactly what a bad ESN is. A bad ESN means the phone has beeb blocked/blacklisted by the mobile phone carrier. The reason being the phone; lost, stolon, shoplifted, outstanding moneys owed.So, no apple Can't replace a phone will a bad ESN, you would be purchasing a phone which can't be used as a phone.