Can I use unlocked but bad ESN iPhone in South America?
Added (1). I'm the Original Poster. Sorry, this thing is beyond idiotic and it's not allowing me to edit the question.
I want to buy an unlocked iPhone 4s or newer but it has a bad ESN/IMEI/MEID. I read that even though it is blacklisted and can't be used in the USA and Canada, it can be used in most of the world's GSM carriers (assuming a compatible frequency). Assume the iPhone is GSM and the carrier abroad is GSM too. Because it has a bad ESN it's cheaper.
But I'd like to buy the phone in Canada and